Hollow stems are cold forged from the highest quality 6061-T6 aluminum available. Featuring an open skeletal design and a dual mid-bolt wedge mounting system, they are lightweight yet maintain a very high level of strength. A 53mm extension stem weighs just 218 grams/7.7 ounces. By removing the rear pinch bolts and moving the mounting bolts to the middle of the stem, we reduced the weight and size and eliminated a serious hazard to the rider’s knees.
These stems come with either a 48- or 53mm extension and a 22.2mm bar bore. To ensure proper clamping force, the stem must be mounted on a fork with at least 45mm of exposed steerer tube. Not compatible with forks that have carbon fiber steerer tubes.
- Lightweight Skeleton Design
- Knee-Saving Wedge Clamping System
- Cro-Mo Clamping Bolts
- Cold Forged for Superior Strength
- CNC Finishing
- Box One XL Fork with 1-1/8" Steerer Tube
- Box One X2 Fork with 1-1/8" Steerer Tube
- Box One X5 Fork with 1-1/8" Steerer Tube
Yes, it can be installed with either side up, for a 5° drop or rise.
No, stem will only fit 22.2mmØ non-oversize handlebars.
|Material||6061-T6 Aluminum||6061-T6 Aluminum|
|Weight||213 grams / 7.5 ounces||218 grams / 7.7 ounces|