"Not compatible with carbon fiber steerer tube forks"

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.

Material: 6061-T6 Aluminum
Process: Cold-Forged
Hardware: Chromoly Clamping Bolts
Finish: Anodized w/Laser-Etched Graphics
Size:
· Length: 48mm, 53mm
· Clamp Diameter: 22.2mm
· Stack Height: 28mm
· Rise: +/-5˚
· Steerer Tube: 1-⅛”
Weight:
· 48mm: 213 grams / 7.5 ounces
· 53mm: 218 grams / 7.7 ounces