BB30 service kit for SRAM DUB cranks. - Includes (2) Enduro 6806/29 ABEC-3 sealed bearings and 2 retaining clips - Bearing Dimensions: OD: 42mm / ID: 29mm / Width: 7mm - Enduro ABEC-3 bearings - Use with SRAM DUB cranks Note: SRAM DUB cranksets are not designed to work in 68mm or 73mm wide shells with inboard bearings. Use only if your frame is a direct-fit bearing system, and the BB shell width is 86.5mm or wider.