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Stem spinnage ?

dan wask

Turbo Monkey
May 11, 2006
1,463
0
B-More Maryland
I took a little spill today and my whole bar clamp and bars got twisted to the left. I was able to hold the wheel with my knees and twist the bars and clamp back straight. Should this be able to happen ? Or is it time to start looking for new stem parts ?
 

sanjuro

Tube Smuggler
Sep 13, 2004
17,373
0
SF
Well, take off the stem and see if there is any damage to the stem and fork steerer.

Then tighten everything again, and see if it still twists...
 

trailblazer

Monkey
May 2, 2005
464
4
Jamaica
yes the bar should spin. that way your parts don't break. If you have a carbon bar and the bolts are tight the levers/stem will carve a cut on the surface and that is where it WILL snap.

Tight enough so the natural torque your hands produce does not move anything.
 

BikeMike

Monkey
Feb 24, 2006
784
0
Most manufactures will tell you that you want to loosen the stem bolts before righting your stem to avoid scoring your steerer tube more than necessary, as scratches are more likely to develop into failure points.