How Do You Measure A Bike Stem Length

However most stems are not marked and must be measured in order to determine size.
How do you measure a bike stem length. In contrast if you are too stretched out it can cause injury to your back. How to measure a bike stem. You may be surprised at the difference even 10mm can make. It must also address the rider s comfort biomechanics performance needs and the steering and handling of the bike.
Gcn tech asks the pros how do you choose your stem length. We often refer to this as the stem length. The real length of the stem from the center of the steering bore to the handlebar clamp we call it stem length. Stem length will vary with the design of the bike.
How to measure your position on the bike bike fit duration. 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. If you have persistent numbing in your wrists or hands it could be that the stem is too short. Riders looking to achieve a long low and aerodynamic position on the bike e g.
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. 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. 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.
Measure your current mountain bike stem to find the proper replacement or to know what size stem to place on a new mountain bike. Gcn tech 254 394 views. In order to alter stem length you must first know the length of your current stem. Competitive racers will opt for a longer 120mm stem for optimum stretch.
Stem length is one aspect of a road bike that you can alter to increase both comfort and performance. 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.