Bike porn

looks completely legit to me.

Whats it doing in here?

the weight penalty outweighs the aero benefit over most normal (non-TT) stages.

Wrong. On a mountain stage, you might just about make an argument for lighter wheels if you weren't already at the UCI minimum; in windy conditions, you might want a shallower front for better handling; but in every other case the aero gain (assuming well designed wheels) is massively greater than the tiny loss from having the weight at the rim rather than carrying it as ballast elsewhere on the bike.

In general, there is no rule about rim depth for road racing except that any wheel used in a mass start has to have passed the UCI "crash test" procedure unless it is an old-school wheel as defined in Regulation 1.3.018

My bike, which is now an old, obsolete model is ~50g under the UCI 6.8kg limit with an 808 rear/404 front.

The idea being to make the bike suitable for the majority of conditions, from climbing to tootling along the flat.

Peter Sagan's bike

Peter Sagan's bike

Who would have guessed that? Thanks for the insight!

no everybody knows as much as you.... but sorry for offend you

I didn't know it was his........

I didn't know it was his........

Who else won stages at these towns?

...The Saddle and handlebar tape should be white....

No.

The UCI - in it's own retrogressive way - class any rim higher than 2.5 cm, fewer than 16 spokes and with a spoke thicknesses of over 2.4 mm as "non-standard". As tester said Non standard wheels have to be approved by the UCI individually which no doubt the manufacturers have to pay a good amount for. List here ..

http://www.uci.ch/Modules/BUILTIN/getObject.asp?MenuId=MTYwNzQ&ObjTypeCode=FILE&type=FILE&id=NjQxNjY&LangId=1

http://farm9.staticflickr.com/8021/7625584304_46d286b912_b.jpg
http://farm8.staticflickr.com/7134/7625619240_5313005f06_b.jpg
http://www.rennrad-news.de/forum/attachments/dscf1132-jpg.54018/

dat somec.... holy batman on a stick :O

more here: http://velospace.org/node/43596

http://www.rennrad-news.de/forum/attachments/kocmo-jpg.53673/

For some reason my posts have to be reviewed by a moderator first, so they show up when everybody is already 5 pages ahead =(

Ruined quite a bit by the fact that geometry whise it kinda looks like it needs a 650c.

why?

The UCI - in it's own retrogressive way - class any rim higher than 2.5 cm, fewer than 16 spokes and with a spoke thicknesses of over 2.4 mm as "non-standard". As tester said Non standard wheels have to be approved by the UCI individually which no doubt the manufacturers have to pay a good amount for. List here ..

http://www.uci.ch/Modules/BUILTIN/getObject.asp?MenuId=MTYwNzQ&ObjTypeCode=FILE&type=FILE&id=NjQxNjY&LangId=1

??No H+Son??

haterz>>>>>>>

check back in a few years for the raddest rat bikes ever.

nice fork clearances.

Not perfect but has a place here imo.

Who else won stages at these towns?

Eddy Merkcx? Lance Armstrong?

haterz>>>>>>>

I'm liking this one, apart from the silly saddle.

Wrong. On a mountain stage, you might just about make an argument for lighter wheels if you weren't already at the UCI minimum; in windy conditions, you might want a shallower front for better handling; but in every other case the aero gain (assuming well designed wheels) is massively greater than the tiny loss from having the weight at the rim rather than carrying it as ballast elsewhere on the bike

1. Is there an issue with weight at the rim (rather than as ballast) and climbing? In terms of momentum, i.e. the wheel 'spinning up' slower? Having never ridden very deep rims I don't know what they feel like.

2. Is every bike ridden on the Pro Tour at or very nearly at 6.8kg? I'm sure I've read a few quoted weights (with SRMs, computers etc.) that were 7kg+ in race spec. Especially the larger sizes, I guess.

And if neither of those things matters, why don't riders run deep rims all the time (barring special conditions like the cobbled classics)? I'm interested to know. Is it psychological?

^^ +1

^^ Tester isn't telling the whole story!

Riders will want shallow rims in the climbs because they make lighter, quicker accelerating wheels, good for attacking and keeping on an attacker's wheel.