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General Category => Time Trials => Topic started by: lajames on May 23, 2014, 10:57:07 AM

Title: 4th Midweek 10 22nd May
Post by: lajames on May 23, 2014, 10:57:07 AM: 1st Christopher Jones Ride Bike Wales 21.29
Rhys LLoyd Metaltech kuota 23.08
Mark Rosser OVW 23.26
Richard Beech OVW 23.27
John Aspell Forza R T 23.36
James Woodier Abergavenny RC 24.02
Simon Bird OVW 24.20
Lowri Devey Abergavenny RC 24.27
Chris Goodwin OVW 24.45
Paul Thomas OVW 26.11
Sion Clarke Outsports 26.39
Paul Longthorn OVW 26.53
Haydn Lewis OVW 27.26
Neil Bartlett OVW 27.31
Kevin Reany OVW 32.27
Andy Harries/Keith Bartlett OVW (tandem) 26.40

Timekeepers Mary Marks and Norman James
Recorder Norman James
Starters Allan Marks and Norman James
Signs Andy Harris/Allan Marks and Norman James
Sign on Mary Marks
Levy Mary Marks and Norman James
Nos. Mary and Allan Marks
No. spotters ?

Another great turnout. Thanks to all who helped and participated. Cheers.
Title: Re: 4th Midweek 10 22nd May
Post by: ron b on May 23, 2014, 11:21:33 AM: Classy field, some good times posted by all.
Title: Re: 4th Midweek 10 22nd May
Post by: harpo on May 23, 2014, 07:49:20 PM: had to rush off! sorry went with my number still attached!didnt realise untill i got home!!
Title: Re: 4th Midweek 10 22nd May
Post by: xrayspecs on May 24, 2014, 05:20:32 PM: Two questions from this
1. Ran out of gears a few times (usually run out of legs).
2. As Richard pointed out my position is quite high. This is intentional as its only the second time I've ridden a tt bike so still a bit nervous. Is it safe to change the order of spacers and the stem to lower the front end?
e.g from spacer x 4 stem top cap to spacer x 2 stem spacer x2 top cap?
Title: Re: 4th Midweek 10 22nd May
Post by: ron b on May 24, 2014, 06:35:32 PM: Yes you can put the spacers above or below, but make sure you tighten everything up properly, do not over tighten the cap on the top of the forks, this torque is critical, too tight and the steering will become stiff, too slack and you will have too much play, not very nice when descending at speed ie GlynNeath Bank. Not too low a profile as you lose visibility. Try too bring your elbows in, to reduce your frontal profile. Check out your profile and others ie. Kieron on the CTT website. Go to the trading estate with some allen keys and experiment, try it out for small changes before you have ago in a TT. It will also take a bit of time to get used to a lower aero position. An initial set up on a turbo with a camera to record the changes and it must be comfortable.
Title: Re: 4th Midweek 10 22nd May
Post by: xrayspecs on May 24, 2014, 07:01:09 PM: Cheers Ron. I have a torque wrench for just this sort of thing.
Title: Re: 4th Midweek 10 22nd May
Post by: Rob Jones on May 24, 2014, 07:41:31 PM: One spacer at a time per ride to gradually get used to it I reckon. The more you take spacers out the more aero perhaps but probably the less power you will be able to produce. Its a balance.
Title: Re: 4th Midweek 10 22nd May
Post by: Andy H on May 24, 2014, 07:49:27 PM: Recent commentary on the Tour of California suggested height of profile isn't as important as frontal area.

They were saying that Wiggins doesn't ride as low as he used to, wind tunnel testing showed it wasn't as important as making yourself 'small'!
Title: Re: 4th Midweek 10 22nd May
Post by: ron b on May 25, 2014, 06:13:50 PM: Club will have to buy a wind tunnel then.
Title: Re: 4th Midweek 10 22nd May
Post by: Andy H on May 25, 2014, 07:10:15 PM: http://www.prestige-cycles.co.uk/wind-tunnel/