Let's see what Lance had to say:
http://www.facebook.com/permalink.ph...id=64263459777
The UCI weight limit is 6.8 kilos. We are well below that now and have to ADD weights 2 the bike. Why not disc brakes and power meter?
http://www.cyclingweekly.co.uk/news/...re-choice.html
Earlier today, Lance Armstrong posted on his Twitter feed, "UCI approves disk brakes for cyclo-cross. Great news. I look fwd to the day they're approved for road racing."
Found an opinion from Levi, too:
http://www.autoweek.com/article/2010...NEWS/101219947
Tour of California winner Levi Leipheimer rolls a 2008 BMW M3, and for the last six months, he's enjoyed a GT-R courtesy of Nissan. His time in the latter was thought by the other riders to give him an advantage in the autocross they would compete in that afternoon. Surely driving fast is less daunting than hurtling down a mountain at 55 mph on thin bicycle tires.
“I think they're very similar,” Leipheimer opines. “You've got to look well ahead and not turn in too early. On the bike, our brakes are pretty good, but we definitely need disc brakes.”
Canyon did a project bike with twin hydraulic discs in front; twin instead of single to balance torque on the fork legs.
http://www.canyon.com/_en/technology/project68.html