How Do You Measure A Bike Stem Length

Competitive racers will opt for a longer 120mm stem for optimum stretch.

How do you measure a bike stem length. However most stems are not marked and must be measured in order to determine size. Getting the right bike stem length can make a huge difference to how you feel on your bike. Measure your current mountain bike stem to find the proper replacement or to know what size stem to place on a new mountain bike. In contrast if you are too stretched out it can cause injury to your back.

The useful length of the stem measured from the center point of the steering bore to the center of the handlebar clamp except accounting to rise on stems this measurement may be made along an imaginary line. Stem length is one aspect of a road bike that you can alter to increase both comfort and performance. This size specific approach goes a long way to getting you set up with the correct stem length providing you ve chosen the right size frame another area where a bike fit comes in useful. The most important consideration when choosing a road stem is the stem length considered as a key factor in the overall fit of the bike.

We often refer to this as the stem length. It must also address the rider s comfort biomechanics performance needs and the steering and handling of the bike. Generally speaking stem lengths on road bikes vary from 80 to 140mm with 100 to 110mm perhaps the most common sizes. The real length of the stem from the center of the steering bore to the handlebar clamp we call it stem length.

The colorado cyclist says when you have the proper stem length you can breathe easier your neck and back are more comfortable and your weight is evenly distributed over your mountain bike. Gcn tech 254 394 views. How to measure your position on the bike bike fit duration. The effective length of the stem measured from the centerpoint of the steering bore to the center of the handlebar clamp without accounting for rise.

In order to alter stem length you must first know the length of your current stem. Stem length will vary with the design of the bike. You may be surprised at the difference even 10mm can make. How to measure a bike stem.

Stem length designated in millimeters may be indicated on the stem. On stems with built in rise this measurement will be made along an imaginary line as seen in the diagram.