Yet another precision component from Race Face, this Cinch BSA 30mm Bottom Bracket allows you to use standard BSA (British) bottom bracket shell threading with 30mm diameter Cinch crankset spindles. The cups are machined for a perfect interface. Race Face offers this in two versions, for 68/73mm shells, or the wider 83mm shell.

Race Face equips this bottom bracket with 6086 retainer bearings packed with waterproof grease, and wiper seals. A plastic insert sits between the two cups when installed, which eliminates water infiltration from within the seattube and BB shell. Exterior bearing covers protect from the outside, and Race Face also includes two 2.5mm spacers so you can find the perfect fit going from a 68mm frame shell to a 73mm shell.