Low handlebars benefit racers, but higher handlebars are best for recreational or long-distance biking. Riding in an upright position reduces pressure on the hands, arms and lower back. Growing children and teenagers also need to have the handlebars on their bikes raised as they grow. The handlebar stem of most bicycles is easy to reposition. There are two main types of handlebar systems requiring different adjustment methods. Threaded stems fit inside the steering tube, and threadless stems attach to the outside of the steering tube with a clamp.
Handlebars With a Threaded Stem
Step 1
Use the wrench to loosen the bolt at the top of the stem one or two turns. It is not necessary to remove the bolt completely. If the bike has a second bolt on the stem (sometimes this bolt is covered with a plastic cap), loosen it as well.
Step 2
Move the handlebars side to side to see if the stem is loose and moves independently of the steering tube. If the stem will not move, try turning the bolt or bolts on the stem another turn, and tap the top of the handlebars with a soft rubber mallet.
Step 3
Raise the handlebars to the desired height. Avoid raising them too high, or there will not be enough stem inside the tube to secure it. The stem may have a line showing the minimum insertion point that must remain in the tube. If the stem does not have a mark, make sure the stem is at least two inches inside the tube.
Step 4
Realign the handlebars with the front tire. Be sure the wheel is perfectly perpendicular to the handlebars.
Step 5
Tighten the bolt or bolts that hold the stem in place. Check to make sure there is no play when turning the handlebars.
Handlebars With a Threadless Stem
Step 1
Use the wrench to remove the bolt holding the top cap on the stem. Loosen the bolts on the stem clamp as well.
Step 2
Lift the stem carefully off the steering tube.
Step 3
Rearrange the spacers to move them below the stem, and place the stem back on the steering tube. If you need more height, try flipping over the stem. Sometimes there is more rise in the angle after turning over the stem.
Step 4
Replace the stem top cap without tightening the bolt all the way.
Step 5
Realign the handlebars so they are perfectly perpendicular with the front wheel.
Step 6
Tighten the pinch bolts and the cap bolt to hold the stem in place. Check to make sure there is no play when turning the handlebars.
Tips and Warnings
- It is easier to raise bicycle handlebars with two people working together. If your handlebars are still not high enough after following these steps, you may need to replace the stem with a longer one.
Things You'll Need
- Adjustable wrench
- Soft rubber mallet
Member Comments