Box Two Center Clamp 1 Inch Stems are cold forged from the highest quality 6061-T6 aluminum. They also feature an open skeletal design and single mid-bolt wedge mounting system, making them among the lightest weight mini stems on the market. A 40-millimeter extension stem weighs just 132 grams grams/4.6 ounces. Box Two Center Clamp 1 Inch Stems have a single-bolt wedge clamp, meaning there are no rear-facing pinch bolts to injure the rider’s knees. They come with a 40- or 45-millimeter extension. To ensure proper clamping force, the stem must be mounted on a fork with at least 28 millimeters of exposed steerer tube.
Available in anodized red, blue, gold and black with laser-etched graphics and five hollow chromoly Allen bolts. Meets or exceeds ENBMX Category 2 standards. Fits 22.2 Ø handlebars. Not compatible with carbon fiber steerer tube forks.
MORE DESCRIPTION
40mm | 45mm | |
---|---|---|
Clamp (Ø) | 22.2mm | 22.2mm |
Material | 6061-T6 Aluminum | 6061-T6 Aluminum |
Rise | +/- 5° | +/- 5° |
Stack Height | 32mm | 32mm |
Steerer Tube | 1″ | 1″ |
Weight | 132 grams / 4.6 ounces | 145 grams / 5.1 ounces |