Find the ideal stem length for your bike. The right stem length improves handling, comfort, and efficiency by optimizing your reach and riding position.
The stem connects your handlebars to the steerer tube and is one of the most important fit adjustments after frame size. Stem length affects your reach to the handlebars, weight distribution, and overall handling characteristics.
A properly sized stem allows comfortable arm extension with slight elbow bend, proper weight distribution between front and rear wheels, and responsive yet stable steering. Most road bikes use stems from 80-130mm, while mountain bikes typically use shorter stems from 35-70mm.
| Stem Length | Bike Type | Riding Style | Effect |
|---|---|---|---|
| 35-50mm | Enduro/DH MTB | Aggressive descending | Quick steering, less stable |
| 50-70mm | Trail/XC MTB | All-around trail | Balanced handling |
| 80-100mm | Hybrid/Endurance | Comfort/touring | Relaxed position |
| 100-110mm | Road | Sport/fitness | Moderate reach |
| 110-130mm | Road Racing | Aggressive racing | Extended reach, stable |
| 130mm+ | TT/Triathlon | Aero position | Maximum extension |
Longer stems for stability and aerodynamics.
Short stems for quick steering and control.
Moderate stems balancing comfort and control.
Stem length is often the first adjustment made after selecting frame size. A bike fit professional may try multiple stem lengths during a fitting session to optimize your position. It's common to change stems as flexibility improves or riding goals change.
Consider starting with a longer stem for stability and gradually shortening if steering feels slow. Conversely, if the bike feels twitchy, try a longer stem. Changes of 10mm can make a noticeable difference in handling feel.
Ensure your frame size is correct before adjusting stem
MTB-specific sizing with reach considerations
Complete your fit with proper saddle width
Size bikes for young cyclists learning to ride
Universal sizing tool for all bike types
In-depth guide to stem selection and adjustment
Measure from the top of your sternum to your pubic bone
Measure from your shoulder to your wrist
Enter your torso and arm length to get personalized stem length recommendations