Race Face BB92 Double Row CINCH 30mm The Trusty Workhorse The bottom bracket is the part that allows your crankset to rotate smoothly inside your frame. It's an important part, and with an excellent bottom bracket, your bike will run perfectly. The Race Face BB92 Double Row CINCH 30mm comes with double-row custom retainer bearings that are super durable. The steel cups are coated for corrosion resistance and CNC ground surfaces provide an exact, perfectly quiet fit in your frame. With the inner plastic sleeve, the elements will be kept out. Features Double-row custom retainer bearings that are super durable Steel cups that are coated for corrosion resistance The inner plastic sleeve helps keep the elements out | Race Face | Bb92 Double Row Cinch 30Mm 89/92