Dauphine Libere 42.4km TT results A ? for TTers

[kieran]

I see the TT was won by current world champ Bert Grabsch (Ger) of Team Columbia - High Road in a time of 51.26min, giving an average speed of 49.462km/h. This pace is faster than Boardman's offical UCI hour record of 49.441km/h set in 2000 and just under the current hour record of 49.7km/h set in 2005. There is not much difference in time, just 8 and a half minutes.

A question for you TTer's then: Does aero equipment and TT bikes make such a difference? given that the hour record would have been done in perfect conditions (flat, no wind, smooth surface etc) and apparently it was a bit windy on the course? Millar did it in a speed of 48.8km?

[Ivor]

dunno, the hour record requires a constant steady power output for the duration, perhaps doing the road TT you can take advantage of the undulations by putting down power on the climbs and recovering on the descents?
even so. 49.462kph. [img]http://www.timetriallingforum.co.uk/style_emoticons/default/NotWorthy2.gif[/img]

[Michelle]

I think Bert Grabsch being extra specially fat helps.

Honestly, I thought Cadel Evans was looking porky for a pro cyclist. But this guy has on him about 2 extra inches of subcutaneous fat. You can't even see his ribs. So wrong, so very wrong!

[Col]

Boardmans 'aero' hour record is 56.375km so a massive difference, also the yellow jersey ended on a standard road bike over 100 places behind. So if I had a Graeme Obree "superman-style" handlebar/carbon monocoque aero frame/5-spoke front & rear disk wheels I could have broken the hour (25mph), maybe just inside the cut of time for the pro's!

[Col]

Also
IHPVA Hour record
The IHPVA record led to fully-faired bicycles: recumbent bicycles, low, enclosed in carbon fibre and Kevlar shells to reduce air resistance. The current record was set in 2008 by Slovenian Damjan Zabovnik at 87.123 km (54.136 mi) ridden on the 5.8 km oval track at the Eurospeedway Lausitz, near Klettwitz, Brandenburg, Germany.

[Andrew G]

Yes aero makes a fair ol' difference. In part kit like a point hat and a disc wheel will help, but as Sean said the frontal area of the rider & bike combo is a big factor. Aero profiled tubes etc make less difference unless they form a bit of a fairing as some do (but can look nice) and dimples make f*** all difference. Air flow around and over the body/bike is the biggie.

I don't know what the wind or course was like on the DL TT but a tailwind would have helped, then again it had a lump in it. An hour record is on a fixed wheel bike too and as you tired you may in theory prefer a slightly different gear to the one you started on, on the TT he could have used which ever gear he wanted.

[kieran]

[quote="Col"]Boardmans 'aero' hour record is 56.375km so a massive difference, also the yellow jersey ended on a standard road bike over 100 places behind. So if I had a Graeme Obree "superman-style" handlebar/carbon monocoque aero frame/5-spoke front & rear disk wheels I could have broken the hour (25mph), maybe just inside the cut of time for the pro's!

[Ivor]

[quote="Sean Hogan - 何祥"]The rider, aand not the bike, is the biggest obstacle to a riders time.

[-Adam-]

Marco, you can always be trusted to bring doping in, nice one...

[-Adam-]

Remember you telling me to train as a Comm at Palace, because I was moaning they were getting stuff wrong?

Perhaps you should go get a job at the UCI, and do something constructive with your morals on doping, rather than just report hearsay all the time...

[Snoop Doug]

I'm meeting Chris Boardman for breakfast in a few days - I'll ask him

And I'll bet I can eat more sausages than he can

[Snoop Doug]

[quote="marco"]either got their head in the sand or something far worse.

[Jon H]

What's the big deal about a pro doing 49kph?
That's only just over 30mph, which is what our top domestic amateur testers do.

[-Adam-]

[quote="Jon Hemming"]What's the big deal about a pro doing 49kph?
That's only just over 30mph, which is what our top domestic amateur testers do.

[-Adam-]

actually...

[quote]Zabriskie burst out of the start house, slipped into his aero tuck and covered the 19km stage at an average of 54.676km/h – it was fast enough to eclipse the efforts of Greg Lemond’s famous victory on the Champs Elysees at the end of the 1989 Tour.