LZ's Tech FAQ: Technical FAQ: Sagan wrenches on his bike during Paris-Roubaix - Television cameras caught Peter Sagan tightening the bolts of his stem while pedaling at high speeds during Paris-Roubaix. Read the full article at Technical FAQ: Sagan wrenches on his bike during Paris-Roubaix on VeloNews.com. http://ow.ly/UoeQ50h55tm