Bicycle Mechanics - Stem Slippage Question

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cholmes7
10-10-11, 02:11 PM
Recently installed a new fsa os99 carbon stem, and tightened it up to the torque recommendations. Everything seems solid enough, except that when I hold my tire straight and give the bars a good jerk in either direction, I can get the stem to slip. I do have to give it a pretty solid jerk, but should I be able to do this? I have ridden it a couple times since, and have not had any slippage during my rides at all. I was however a little nervous on my latest descent. Just curious what you guys thought.

Thanks!

CACycling
10-10-11, 02:13 PM
Did you use carbon assembly paste? I would not be comfortable with any slippage.
dsbrantjr
10-10-11, 02:56 PM
cholmes7: +1 on the assembly paste and also recommend you grease the stem clamp bolts before torquing them. Any slippage is going to eventually cause wear on your stem.

cholmes7
10-10-11, 03:14 PM
Yeah didnt use any paste, wasnt sure if I would have to with the stem. I will definitely give that a shot, as well as greasing the bolts. Really not comfortable riding it as it is. Appreciate the replys!