Box Two 22.2 x 1" Center Clamp Stem Color:Red To ensure proper clamping force

To ensure proper clamping force

Maximum recommended user weight is 99 pounds

Made in the US from 6061-T6 aluminum alloy

The airflow ports are artfully sculpted to both reduce weight and drag

The alloy cogs are anodized black with laser-etched graphics

Box Two 22.2 x 1" Center Clamp Stem Color:Red To ensure proper clamping force"Not compatible with carbon fiber steerer tube forks" 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 22. 2mm bar bore 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,