Hope DUB Bottom Bracket Conversion KitThis brilliant conversion kit is ideal for both road and MTB use as it provides smooth and dependable performance with every rotation. Designed to be simple to install, this excellent set is compatible with DUB cranksets and Hope 30mm bottom brackets. This allows for a straightforward conversion, so you can spend less time in the workshop and more time enjoying the ride. Features: Use: Road, MTB Crankset Compatibility: DUB Bottom Bracket Compatibility: Hope 30mm BBBuy Hope Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.