How To Fix Bicycle Handlebars. If this isnt the issue check your stem clamp bolts. Thoroughly check to make sure before riding your bike again.

Re-wrap the tape starting at the bar end and finishing near the stem. When tape is wrapped the other way from the center to the end your hands push against the overlap along the top curves. Handlebar stems have two types threadless stems and threaded stems.
Install the new handlebar into the stem.
If they are loose to the point where you can slide them back and forth with hardly any effort theyve become dangerous. An easy way to check this according to REI is to engage the front brake and rock the bike front to back. To help create a grip file a grooves inside the risers and bars. Continue to sand the handlebar until no more residue falls.

