BBB Cycling CollarClamp Bike Seatpost Clamb Single Bolt Screw on Seat Post for Carbon and Aluminium Seatposts Roadbike, MTB E 34.9 mm (30.9, 31.6) Black BSP 88

FOR EVERY RIDE: The CollarClamp Seatpost Clamp is the essential screw-on seatpost clamp designed for the ultimate protection of your seatpost IDEAL DESIGN: This seatpost clamb has a rubber cover that is your shield against water and dust, ensuring your seatpost stays clean and functional MULTIPLE SIZES: The CollarClamp is available in the most common sizes: 31.8 (27.2) and 34.9 (30.9, 31.6). It is important that the inside diameter is measured very precisely with a caliper to make sure you have the right seat post size DURABLE AND STRONG: This screw-on bike seat clamp is made from durable 6061 T6 aluminium but only weighs 25 grams. It's versatile, fitting both carbon and aluminium seat posts PART OF YOUR RIDE: BBB Cycling offers a wide variety of bike repair tools. Tools for on the road for cyclists who suffer from bike damage along the way, and workshop tools for all maintenance before and after your ride