BB30 ABEC-3 Bearings & Clip Kit for SRAM DUB CranksBB30 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.