The HideMyBell raceday bb handlebar mount with bell is a must-have due to the choice of premium materials combined with maximum ease of use. This Close the Gap handlebar mount is made of an extremely stiff UD carbon composite. This premium material makes it possible to design lightweight in combination with very good stiffness.The raceday bb is specifically for mounting on the innovative Bontrager Blendr / BMC ICS handlebar systems. Specifications: Call to delete in an instant Durable steel bell clapper Material: UD Carbon Lightweight: only 24 + 15 grams Bike MOTION AWARD winner Include: Adapters: Garmin, Sigma ROX (Garmin adapter) Wahoo + Bryton GoPro style adapter Optional accessories uni light adapter Mio, Polar, Hammerhead Karoo2 adapter, Lezyne Suitable for the following brands: Bontrager Blendr (TREK) BMC ICS