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Snainton TT results 7/4
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UserPost

10:39 pm
April 7, 2011


Dan Joyce

Moderator

posts 596

1

Wow. I was expecting maybe ten riders tonight. We got 34 (32 bikes, as two were tandems). I spent so long signing everyone on and dishing out numbers that I barely had time to speak to anyone, even time keepers Mike Boag and step dad Matthew. They were calm and efficient, however, while I flapped about like a bird with a broken wing, telling them and retelling them the same things. There was a risk that some riders would finish before everyone had set off, so I drafted last man off Ian Squires as a pusher off. Well, maybe Nick was last man off as he was on the back on the tandem; Ian was on the front.

We had a great mix of newcomers, middle markers, and hardened TTers. As well as Richardsons CC and Richardsons TEF riders, we had riders from Paragon and Malton. We ended up starting a bit late, but lucky the evening was mild and sunny, with decent visibility. I bust the zip on my skinsuit when I rushed for a last minute pee and ended up having to safety pin the front up. Very gothic, although probably not very aero. Talking of safety pins: we need some more.

As for the ride, there was stiff westerly breeze made it hard going out towards Allerston. Stu Jackson and Rich Simms both had an unscheduled visit to the cricket ground during their races, after taking a wrong turn. I think we need the big arrows for first timers riding this course. I did have some little ones but ran out of stakes, as I used them for the several big ‘warning’ signs that were on the outskirts of the course. (You won’t have seen them. Well, Stu and Rich might!)

Matthew Enticknap makes the point of having a marshall for that right turn. I’ve ridden it with and without. I guess it would have helped Stu and Rich stay on course. It would require more volunteers of course. I put a big warning sign 30 yards or so before the turn by way of compromis

There were some interesting times tonight. Among the families riding, Lewis Scott nosed in front of dad Mike, and Callum Norris managed to stay out in front of dad Simo

Dave Simpson earned his TT spurs with a solid ride of 27:32, and Ian Squires and Nick Jackson were just behind him with 27:41 – on a tandem that was hacking around the mud of Broxa forest a few weeks ago. Nick Wilson came home in under 30 minutes in what I think was his first TT. Brendan wasn’t far off an average speed of 20mph either. Lorraine showed why she has a trophy and was first solo female finisher. Treasurer Tim Watts held an average speed of over 18mph in his first ever event, and while Dave Myers muttered afterwards that he wanted a faster bike or a faster body he wasn’t actually far of the pac

At the other end of the field, visiting rider Tommo had a good ride to catch Matthew Enticknap. Carl Martin and Paul Hickman made it, if not a 1, 2, 3 for Richardsons TEF, a still impressive 2, 3,

The only thing I want to know is why Paul Lane’s cycling mitt ended up stuck to someone else’s lycra shorts? (Was it you, Pete – I can’t remember.) Here are the results (below). If this was your first event: here’s your target for next time. Our next TT is in two weeks’ time on the Pickering/Malton road. Thanks again to Mike and Matthew for time keeping, to Ian for pushing off, and to anyone else whom I shouted panicky instructions at. I’ll be better prepared next time, honest.

1  22:28 Dave Thompson (SPCC)

2  23:34 Matthew Enticknap (R/TEF)

3  24:04 Carl Martin (R/TEF)

4  24:20 Paul Hickman (R/TEF)

5= 25:32 Barrie Cappleman (SPCC)

5= 25:32 Matt Purnell (SPCC)

7  25:45 Lewis Scott (SPCC)

8  25:46 Mike Potter (SPCC)

9  25:53 Mike Scott (SPCC)

10  25:55 Dan Joyce (RCC)

11  26:32 Dave Leaming (MW)

12  26:48 Jeff Francis (RCC)

13  27:05 Chris Goode & J Graves (SPCC)

14  27:32 Dave Simpson (RCC)

15  27:41 Ian Squires & Nick Jackson (RCC)

16  28:23 Paul Lane (RCC)

17  28:37* Rich Simms (RCC)

18  29:28 Matthew Graves (SPCC)

19  29:51 Nick Wilson (RCC)

20  30:22 Tony Graves (SPCC)

21  30:34 Matt Hazell (MW)

22  30:43 Steve Samples (RCC)

23  30:59 Peter Macauley (RCC)

24  31:10 Dave Schubert (RCC)

25  31:37 Brendan Ferguson (RCC)

26  32:22 Tim Watts (RCC)

27  33:23* Stu Jackson (RCC)

28  34:14 Simon Norris (RCC)

29  34:50 Lorraine Naylor (RCC)

30  34:57 Callum Norris (RCC)

31  34:58 Terry Lynch (SPCC)

32  35:46 Dave Myers (RCC)

* Went off course

Post edited because I transposed the times of Tim and Lorraine


Read original blog post

10:55 pm
April 7, 2011


Mark G

Moderator

posts 1107

2

Thats excellent 34 riders!!


wow……sorry I could not make it opening a new police office in Whitby on Tuesday and the boss wanting more work and reports all rush on my last day before Majorca. 

The write up is great what was Paul Lane up to!!!  and did anyone get any pictures? 


11:09 pm
April 7, 2011


Dan Joyce

Moderator

posts 596

3

Here's my Garmin plot of the ride. Rich - get this in yer GPS so it'll tell you where to go next time! Wink

I didn't get to warm up (starting HR of about 80 something) then set off too fast (HR suddenly spiking to about 190). I'll learn one day.

11:16 pm
April 7, 2011


Mark G

Moderator

posts 1107

4

great to see our young volunteers getting involved!  Did just Michael Boag turn up  and did you need to sign off his book to record his hours??

11:17 pm
April 7, 2011


david s

RCC VIP

pickering

posts 132

5

great event Dan.Laugh

il be looking on ebay now for a tt bike and a helmet.Laugh

looking forward to the next one.

11:37 pm
April 7, 2011


Dan Joyce

Moderator

posts 596

6

Mark - yes, just Michael and Matthew. Yes, I signed his book. He did a great job. 

Dave - nice one. I'd tweak the bike position first: put the seat as far forward as it'll go on your road bike and/or get an inline seatpost. Then get a lower stem (with 'negative rise', or flip a riser one IF it's a sturdy 4-bolt one). Aero helmet is good bang for your buck, as is a skinsuit (but not one with safety pins holding it together!). Because the human body is so unaerodynamic, anything that improves it is worth investing in. If you're running normal clincher rims, fast tyres like Continental Supersonics and latex innertubes also offer affordable speed. Then it's the expensive stuff like aero wheels and frame… 

7:35 am
April 8, 2011


matthew

Member

posts 309

7

Where am I going to find a minute from to beat that Tommo? Yell

Damn good Engineering Draughtsman, air cooled VW lover and Karmann Ghia owner.

9:58 am
April 8, 2011


IanS

RCC Regular

occasionally in the shop

posts 11

8

That was great fun. First and not last for me and my ballast/power pack. We didn't get a pusher, being last ones off, so that accounts for probably a minute or so. I didn't get a warm-up as pusher, so another minute as my legs were stiff from standing behind bikes. Nick had his seat 5mm too high, another minute there lost in rocking about. We stopped for a cup of tea at a friends in Allerston, so there's the last ten. We could have had best time if we had taken it seriously…

My legs hurt this morning, and looking at my Garmin plot, my heart was beating a little too quickly for a little too long.

I'm with you on the bike etc front Dave. I was looking at Cubes TT bike online last night, but the Giant Trinity looks quite sweet. We can all dream, I'll just turn the seatpost round and get Ian to body paint me before leaving work.

10:15 am
April 8, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

9

matthew said:

Where am I going to find a minute from to beat that Tommo? Yell


Give me 10 minutes of your time for a little 'coaching' chat and in less than 4 weeks you'll be 30secs faster.

Give me 1hr and 8 weeks you'll drop a minute, no I'm not joking, two photos and 1hr that's all, I've got you sussed already.

Start by ditching the HRM's and Garmin's - total waste of time. FEEL. Every minute you are on the computer trying to suss out what the hell all those numbers really mean I'm out training getting faster and getting the FEEL factor. You get the idea, there's the first leason. Smile

19's are there waiting for ya - it's doesn't have to be a dream. LaughLaughLaughLaugh

Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

10:30 am
April 8, 2011


Dan Joyce

Moderator

posts 596

10

I understand what you're saying, Tommo, and why - you happen to speak to Pete Read or Dave Lloyd lately, or read anything they've written? - but I reckon it also depends how you think. Some people have good focus when riding. Some don't. I drift off and start thinking about my tea if I'm not careful. And I think even if you're not going to look at a HRM or Garmin when actually racing, they still offer value for checking your performance afterwards, and not least for training.

'Computers v no computers' is a bit like 'gears v fixed' or 'short cranks v long' or 'tubs v clinchers'. There are pros and cons of different setups, but you like best and what works for you is what works. Having said that, I think it's worth experimenting to find what you like best. That might be riding on feel. But it might be riding with a powermeter. Plenty of fast riders use exactly that.

For now I'll stick with fixed, 165mm cranks, and wish my wheels were clinchers not tubs. But I may tape over the Garmin for a few races to see how that goes. Smile

1:16 pm
April 8, 2011


king of the hill

RCC VIP

posts 156

11

2 photo's ive got one of me in the bath and one in Paris don't know how these would help me go fasterLaugh


I'll take 10mins of your time Tommo if you can spare them, i have my computer for show only to get feed back later, and don't use during, i have issues between breathing and cadence my mind switches between the 2 GGrrr oh yeah and leg painFrown my cadence was crap last night pushing to bigger gear into windFrown


Great night ta again to allSmile

Sack Race Champion,Egg and Spoon Champion, Running Race Champion, Runner up Bean Bag Race Cayton Gala 1977

2:03 pm
April 8, 2011


Mark G

Moderator

posts 1107

12

All I would say is focus on one thing in TT.   That could be power, HR, RPE (rate of perceived exertion)  and one size does not fit all. we are all different and therefore what works for one might not work for another.

In TT I use HR that works for me. 


However all this wont make you go faster.  Do the training and the results will follow.  Also training is not about the engine alone - alongside the physiological demands you cannot ignore the others:

psychological, tactical, technical and tere could be others environment, nutrition etc….  

3:42 pm
April 8, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

13

This has got you all going. Wink

Dan I've not spoke to anyone or read anything about training, I never do, don't get the mags - don't look on the net.

Honestly, I can't be a***ed.

You are right as always about everything else there, but I find it strange that when people say they work well with HRM's or powermeter's that in the end they like you last night still go up to 190bpm and blow up. This lad I beat down at Worksop had a powermeter and set off at 380watts whatever that is - and then blew up and said 'What was I thinking'. Well what's the point in having one if you don't look at it and use it, only to check up at home that 'Yes - I did in fact blow up' ?????? Anyway there you have it. I used a HRM for my first 2 years of TT'in, was fairly average then ditched it as a waste of time.


I'll take 10mins of your time Tommo if you can spare them

I'll see you at Brotherton next week Carl dude. Wink


That could be power, HR, RPE (rate of perceived exertion) ????? Also training is not about the engine alone - alongside the physiological demands you cannot ignore the others:

psychological, tactical, technical and tere could be others environment, nutrition etc…. emm Pizza 

I've got headache nowCry I'm off out training.


See you all at Pickering.

Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

4:01 pm
April 8, 2011


NickW - Pickering

RCC Junkie

posts 73

14

My first TT experience just to see what you roadies get up to, and really enjoyed it. Laugh

Didnt plan for this just stopped off on my way from work. I appreciate now all the stuff that you need to do to get good times doing this.

Apart from the obvious training, for me bike setup is the biggest factor. I still need to fettle my road bike - seat was too low, position too upright not down low. Some guidance on this most welcome ..

Also, wearing a mountain bike tinpot with visor and all the little stuff - I fancy having another go at one of these if I can make the proper changes - sure I can go faster than this…Wink

4:27 pm
April 8, 2011


Dan Joyce

Moderator

posts 596

15

Tommo said:

You are right as always about everything else there, but I find it strange that when people say they work well with HRM's or powermeter's that in the end they like you last night still go up to 190bpm and blow up. This lad I beat down at Worksop had a powermeter and set off at 380watts whatever that is - and then blew up and said 'What was I thinking'. Well what's the point in having one if you don't look at it and use it, only to check up at home that 'Yes - I did in fact blow up' ?????? Anyway there you have it. I used a HRM for my first 2 years of TT'in, was fairly average then ditched it as a waste of time.



I started badly because I was flustered from organising stuff and hadn't warmed up. The HRM didn't make me go up to 190bpm. I did. Yell But I saw what I was doing and put a lid on it. Rest of the ride went okay - from the point of a fairly average racer like me. 

Your 'no external data' riding is a valid approach. But so is using an HRM or a Powermeter. Some pretty fast riders do use them - some of them even faster than you, Tommo. Wink Information is only as good as the use you put it to, so getting hold of data doesn't necessarily make racers go faster. And it may have made you go slower. Like Mark, I was just challenging the idea that HRMs are 'a waste of time'. For you, sure. For others? Some yes, others no.

I'm not really arguing with you, and I don't think Mark is either. If you read between the lines, we're all saying the same thing: try stuff - see if it works. Smile

Meanwhile, I'll leave you with this. Someone once asked Eddy Merckx how to be a better rider. His reply: 'Ride your bike, ride your bike, ride your bike!' 


5:07 pm
April 8, 2011


king of the hill

RCC VIP

posts 156

16

NickW - Pickering said:

My first TT experience just to see what you roadies get up to, and really enjoyed it. Laugh

Didnt plan for this just stopped off on my way from work. I appreciate now all the stuff that you need to do to get good times doing this.

Apart from the obvious training, for me bike setup is the biggest factor. I still need to fettle my road bike - seat was too low, position too upright not down low. Some guidance on this most welcome ..

Also, wearing a mountain bike tinpot with visor and all the little stuff - I fancy having another go at one of these if I can make the proper changes - sure I can go faster than this…Wink

Alright Nick, if your gona use ya current road bike get some clip on TT bars to fit on your current bars thats where we all started, you'll gain a minute easy if not more with out any extra effort, you'll get a cheap set off ebay deda do some good ones Cool



Sack Race Champion,Egg and Spoon Champion, Running Race Champion, Runner up Bean Bag Race Cayton Gala 1977

5:53 pm
April 8, 2011


matthew

Member

posts 309

17

matthew said:

Where am I going to find a minute from to beat that Tommo? Yell


What have I started?

In my defence, its the first time Ive riden this course and Tommo learned TT'ing in the course (and other local ones), so, in my opinion, there's at least 45secs.

Another 15 seconds for not setting off too fast then hitting that head wind and “blowing up”. I bet Tommo knew not to go too fast.

Looking at my Garmin data Wink I went a lot faster on my second lap after recovering at 27mph.

PS. Tommo, were you slip streaming me on that return leg……Laugh

PPS. Ive just got to go faster. I get it now.

Damn good Engineering Draughtsman, air cooled VW lover and Karmann Ghia owner.

6:27 pm
April 8, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

18

Dan Joyce said:

I'm not really arguing with you, and I don't think Mark is either. If you read between the lines, we're all saying the same thing: try stuff - see if it works. Smile

Meanwhile, I'll leave you with this. Someone once asked Eddy Merckx how to be a better rider. His reply: 'Ride your bike, ride your bike, ride your bike!' 


A fair comment and you are right to try different things, I just don't believe the average man on the street can buy a HRM or powermeter etc. and extrapolate all the info without major work and time which is a waste, as Eddy says get out and 'Ride your bike'

There will always be name's that we can pluck out of the air to say he use's them or he doesn't.

Cammish multi national champ & record holder - no tech, no coach, just rode his bike (20,000m a year - very fast)

Wink


5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

6:36 pm
April 8, 2011


CallumN

RCC Dedicated

posts 45

19

anyone know where i could get a decent set of tri bars that will fit my islabike?? struggling to find some that will fit on because of the (frankly rather stupid, at least for me anyway) second set of brakes on it Yell. looking to improve my times this year and think this will help,

any advice welcome,


Callum Smile

6:44 pm
April 8, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

20

Maff:-

In my defence, its the first time I've riden this course, so, in my opinion, there's at least 45secs.

Oh at least I'd have said about 2-3mins. Surprised

I bet Tommo knew not to go too fast.

Sussed that out after my very first TT in 2006 when I blew up at 3m.

(Snainton 10m on a road bike with normal road helmet & clothing 26:21)

I went a lot faster on my second lap after recovering at 27mph.

Looking at my trip computer after the first lap (5m) I had 26mph average and finished with 26.71mph average so went 27.42mph on the 2nd lap. So same sort of pace as me just very slightly slower, but good pacing - well done. Wink

were you slip streaming me on that return leg……

For about 1 second as I pasted you at 34mph. First saw you at Yedingham on 2nd lap about 20secs in front but didn't know who it was till a bit later up the road to Ebberston.

Ive just got to go faster.

You've got a week to find that 1min before we team up to take on Yorkshire's best at Brotherton. Cool


Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

6:49 pm
April 8, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

21

CallumN said:

anyone know where i could get a decent set of tri bars that will fit my islabike?? struggling to find some that will fit on because of the (frankly rather stupid, at least for me anyway) second set of brakes on it Yell. looking to improve my times this year and think this will help,

any advice welcome,


Callum Smile


My youngest lad has an islabike and I took the extra brakes off, it's not a hard job. Then you can fit some tri's.

You would be better with a normal road bike though as they (islabike) are a cross type bike.

A normal road bike will have a better aero package with out those sticky out brakes and extra bits you don't need + the wheels and tyres are heavy.


Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

9:00 pm
April 8, 2011


Mark G

Moderator

posts 1107

22

Hi Callum  I would stick with your current bike for now.   

You need to try different types of racing before you decide on any siginificant changes to your bike.  

I am doing an input at the next club meeting on 18th April on racing and different types of events and what is open for all ages of riders.   

I would try different events this year in addition to time trialling, cyclo cross, road circuit racing and mtbing….even bmxing but I know you dont have that type of bike!  The meeting on 18th April you can find out what is available for you to try.  

At your age bike skills are the most important thing to develop and therefore disciplies that improve these are best to try such as mtbing or bmxing.


If you want specific or more detailed advice email me.  

10:16 pm
April 8, 2011


Lewis

RCC Dedicated

posts 24

23

Callum, Ive taken note of what Mick, Tommo and Elaine (My coach) Wink have to say so I would take note on what tommo has to say about a new bike/frame but Ian Cammish said to me at the club dinner that the tyers/tubs are the most important thing to have to go faster and I wouldn't like to question him about going fast.Laugh

2011 Yorkshire juvenile 10 mile champion

10:32 pm
April 8, 2011


Paul Lane

RCC Rookie

posts 7

24

Ok

Time to break the silence… the glove ended up on petes backside because he sat on the lip of my car boot where the glove was…. Who am I kidding?


I work at sea for gods sake!!!!!!!!!!

11:07 pm
April 8, 2011


Dan Joyce

Moderator

posts 596

25

Tommo said:

A normal road bike will have a better aero package with out those sticky out brakes and extra bits you don't need + the wheels and tyres are heavy.


We've settled the previous 'argument', but I won't let this one lie. Cool The difference in aerodynamics between a cross bike and road bike is trivial. Sticky out cantilever brakes? Get outta here! Wheel weight makes a minimal difference in a flattish time trial too. 

Better to have a versatile bike that you can try different things on. If you really want to go faster on the Islabike, you can tweak the riding position (e.g. tri bars) or you could, as Lewis suggests, put faster tyres on. These are what will reap the significant rewards at a sensible price. And most of the rest is riding your bike more. 

(I'm not suggesting things like aero bikes or wheels don't make a difference, not that sidepulls aren't marginally more aero than cantis - . just calling for a sense of proportion.) 

8:28 am
April 9, 2011


matthew

Member

posts 309

26

Im half tempted to do Yedingham Triangle on my crosser next time to compare. Wink

Damn good Engineering Draughtsman, air cooled VW lover and Karmann Ghia owner.

8:54 am
April 9, 2011


Dan Joyce

Moderator

posts 596

27

Nice one, Matthew. But it's only a valid comparison if you sort the crosser so it has the same riding position as your TT bike, the same tyres, and has gears that go high enough. The biggest gains from a TT bike come from the riding position it lets you adopt. But you can get that on other bikes. Andy Wilkinson did some pretty good rides on a converted hybrid with tri bars on it. Surprised

You could extend the experiment by having a go at a cross on your TT bike, maybe? Smile

6:38 pm
April 9, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

28

I NEVER said change the bike, did I. Confused

I mean get another bike for RR'in / TT'in - a road bike. Keep the Isla for training / crossing etc. it's a good training bike for sure.


I said 'sticky out brakes and extra bits you don't need etc'

So it's the overall aero - front forks / frame  basically everything. All these are not as good as on a road bike and all the things together do add up but only a small % I do realise, but it helps upstairs with the old psyche. Wink


Wheel weight makes a minimal difference in a flattish time trial too. 

LaughLaughLaughLaughLaughLaughLaughLaughLaugh

Absolute rubbish, (Rotating)wheel weight is the most important weight saving you can make. Flat or not + I didn't believe you can get super thin tyres on those wide rims.

Callum - Position is very important but be careful not to be too uncomfortable otherwise you will go slower even if you are in a better aero position.

Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

6:55 pm
April 9, 2011


Dan Joyce

Moderator

posts 596

29

Tommo said:

I NEVER said change the bike, did I. Confused

I mean get another bike for RR'in / TT'in - a road bike. Keep the Isla for training / crossing etc. it's a good training bike for sure.


I said 'sticky out brakes and extra bits you don't need etc'

So it's the overall aero - front forks / frame  basically everything. All these are not as good as on a road bike and all the things together do add up but only a small % I do realise, but it helps upstairs with the old psyche. Wink


Wheel weight makes a minimal difference in a flattish time trial too. 

LaughLaughLaughLaughLaughLaughLaughLaughLaugh

Absolute rubbish, (Rotating)wheel weight is the most important weight saving you can make. Flat or not + I didn't believe you can get super thin tyres on those wide rims.

Callum - Position is very important but be careful not to be too uncomfortable otherwise you will go slower even if you are in a better aero position.

Wink


No, you didn't say get another bike. But you implied it. And you've just said it now: get another bike. Callum doesn't really need another bike at this stage. If he wants one, sure. 

Absolute rubbish that wheel weight makes a minimal difference in a flattish time trial? Explain disc wheels. Smile You've got one. Maybe you should ditch it for a 16-spoke superlight wheel? Cool Aerodynamics trump weight. A heavier disc wheel is faster than a lighter spoked wheel. Fact. Saying otherwise is absolute rubbish.

Rotating weight is the most important weight saving you can make, but it only makes a significant impact in flattish time trialling when accelerating at the start and when accelerating out of corners. There won't be hills to accelerate up because you'll note I used the word 'flattish'. That means no hills. 

You can get 25mm tyres on the Islabike rims. Even 23mm will fit, though the ride will be a bit harsher that it would with a narrower rim. 


7:21 pm
April 9, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

30

Dan Joyce said:

Explain disc wheels. Smile You've got one. Maybe you should ditch it for a 16-spoke superlight wheel? Cool Aerodynamics trump weight. A heavier disc wheel is faster than a lighter spoked wheel. Fact. Saying otherwise is absolute rubbish.


Disc's are faster at speed you know that BUT IMHO you need to go 25+mph before the aero out weighs the weight.

At Callum's speed light is best if he got a disc he would go far slower for sure as he wouldn't be able to get it turning round on a flat course or not. simplez.

When I first got a disc I was going around 23-24mph and went slower for a while. Fact. I had to train hard to get the speed up to 26'ish to make it start to work, at 27mph it felt no harder to pedal than at 25mph i.e. the aero was working.

Yeah for sure a light weight 16 spoke rear would be slower for me but then I've just done a 20min10sec 10miler which is an 29.75mph average speed and at that speed the aero is really working to your advantage.

Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

7:30 pm
April 9, 2011


matthew

Member

posts 309

31

Just washed my TT bike and tried to work out what a strange clicking was. See picture below:

The rail on my saddle bust

The rail on my saddle bust! No wonder I felt myself slipping to the front more than usual.

Damn good Engineering Draughtsman, air cooled VW lover and Karmann Ghia owner.

8:09 pm
April 9, 2011


Dan Joyce

Moderator

posts 596

32

You're a fast rider, Tommo, but I'm guessing you didn't do physics at school? Wink While there's no flywheel effect from a heavier wheel, once you have accelerated it up to speed you don't have to keep accelerating it up to speed. That's what inertia is. So as I say, in flat time trial, a heavier wheel is not really a big deal. (Lighter is better, sure, because you have to accelerate at the start and at the turn, but it's not that important.) It is a big deal in almost every other form of cycling imaginable, because you're constantly accelerating and decelerating. So I'm still calling you out on the 'absolute rubbish' claim you dished out a couple of posts back. Give me something more than anecdote and I'll listen. Smile

I'm not convinced that slower riders won't benefit from aero aids like disc wheels either, or that they will benefit less. Less powerful riders are actually affected more by air resistance, since at a given cycling speed or wind speed they're using a greater proportion of their available power to displace air. 20 extra watts to overcome is less of a deal when you can put out 380 than when you can put out 150. And the slower rider has got more time to save, in absolute terms, so even if the marginal gains in aerodynamic efficiency are smaller, the time saved in seconds could yet be higher. 

The reason that aero aids feel like much more of an improvement at certain speeds is that drag increases at the square of velocity. So the faster you go, the more difference you can feel the aero aid making; there comes a point where it's the only practical way that you can go faster. That doesn't mean it's not having any effect at slower speeds. Aerodynamic drag is the main limiting factor on speed when cycling when you get beyond as little as 12-13mph. 


8:22 pm
April 9, 2011


Smiler

RCC Junkie

posts 94

33

As a slower rider and having competed on Thursday night tt as my first, I have too say that all of this thread is way over my head except the first post.

My time is too slow. I was hoping for a sub 30 minute time, so, I've been out riding, pushing more than i would up the hills and actually starting to take this cycling lark a little more seriously than I have been(not to much though).

I'll be at the next tt on me cheap road bike, with my mountain bike helmet and shoes and going for a quicker time. For me I reckon that any technology there is wont make me any faster, just a few less foodie treats(pies) and a bit more training and I'm going to get faster.

Lorraine said that this tt game was addictive………….she maybe right.

8:24 pm
April 9, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

34

Dan Joyce said:

 So as I say, in flat time trial, a heavier wheel is not really a big deal.


I went from a 1310g Planet x Disc to a Zipp disc at 936g and guess what I went faster. LaughLaughLaugh

Faster at Hull - Faster at Snainton - Faster at Burton Fleming - Faster everywhere.

Only a few weeks apart for all the above as well for fitness levels comparison.

So you can say what you like sunshine. Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

9:56 pm
April 9, 2011


Dan Joyce

Moderator

posts 596

35

So: that would be anecdote <rolls eyes>. Did I tell you that all my PBs were done while wearing black socks. Black socks are faster. Wink

Are you also denying that the Zipp disc is more aero than the Planet X disc? That it was all (whatever 'all' was) down to a few hundred grams? And that there was no placebo effect because you'd just dropped a four figure sum? Yes? Well, I've never denied weight makes a difference; we must just have different definitions of 'minimal difference' and 'a big deal'. Clearly it was a big deal to you. Tell me what the cost in pounds was per single second saved on a given event? 

Meantime, I'll respectfully suggest that relatively new time triallists don't think they have to have a new bike or lighter wheels or that cantilever brakes or unspecified 'other stuff' (frame eyelets? Laugh) is making their bike act like a sail in the wind; that they just enjoy their riding, get fitter and, if they do want to buy some cheap speed (not that kind!), they consider fitting tri bars (Callum - you can fit them to your Islabike once the auxilliary brake levers are removed, as Tommo noted earlier on) and maybe change the bike's tyres. Brendan has exactly the right idea. Ride more. Enjoy it. As you enjoy it and ride more, you'll go faster. The rest can wait.

Along with the scientific explanation of why I was spouting 'utter rubbish' that I was waiting for. Wink 


2:57 pm
April 10, 2011


Mark G

Moderator

posts 1107

36

OMG I am sat in majorca thinking poor Callum he asked for some advice and his head must be spinning now..  There is far too much discussion on this. 

Any British Cycling or national Coach wil tell you that riders of Callum age need to develop bike handling skills and enjoy riding.  

Do not pin everything on time trials try all aspects of the sport and only after you have done that look to make any siginificant bike changes or shell out additional expense.


12:09 pm
April 11, 2011


Dan Joyce

Moderator

posts 596

37

I agree, Mark. Smile I just think anyone making claims like 'absolute rubbish' should be able to back them up.

For anyone who is interested in how stuff like weight and aerodynamics affects speed on a bike, this page isn't a bad start. I can also recommend the books Bicycling Science by Whitt & Wilson and Bicycle Design by Mike Burrows. 

For anyone who isn't: ride your bike, ride your bike, ride your bike. Smile

12:49 pm
April 11, 2011


king of the hill

RCC VIP

posts 156

38

Calumn you need to get ya Dad to buy a wind tunnel, then adjust your bike accordingly to the air flow, this may cost a few quid but you will be well popular with all TT'rs because we'll all want ago, and you will go faster, please put my name down first as it was my ideaSmile

Sack Race Champion,Egg and Spoon Champion, Running Race Champion, Runner up Bean Bag Race Cayton Gala 1977

1:13 pm
April 11, 2011


Tommo

I love RCC!

I Love SPCC more

posts 258

39

king of the hill said:

Calumn you need to get ya Dad to buy a wind tunnel, then adjust your bike accordingly to the air flow, this may cost a few quid but you will be well popular with all TT'rs because we'll all want ago, and you will go faster, please put my name down first as it was my ideaSmile


I'll have a bit of that as well but it will have to be a quick test as I need to get out and ride my bike ride my bike ride my bike.

Don't forget the most aero position for 'you' might be too uncomfortable to hold, therefore you will go slower in a better aero position.


Testing stuff for real - not just reading/writing about the theory. There's no escape, the times don't lie. Fast & slow I've been there. Wink

5m 10:15 - 10m 19:28 - 15m 31:06 - 25m 52:58 - 30m 1:05:34 - 50m 1:47:36 - 100m 3:47:15 - 12Hr 274.69m

3:18 pm
April 11, 2011


Mark G

Moderator

posts 1107

40

But remember good riders don't necessarily make good coaches.


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