If you want your chainset to rotate freely then you will need a bike bottom bracket. There are plenty of different types that you can choose from. From the thread type (generally BSC, Italian or press fit), to the type of axle (Square tapered, Octalink, ISIS,..) or external bearings. We offer a wide choice of bottom brackets to meet your requirements. Even coloured ceramic bottom brackets if you want to try and get an advantage over your friends..