Wheels Mfg BB86 to 29MM Kit (DUB) for PressFit 86/92 Bottom BracketLimited Quantity Available Expand your choice of cranks for use in frames with 41mm ID shells. Replace your bottom bracket with these dual row flanged bearings and run 29mm spindle SRAM DUB compatible cranks in your frame. These bearings fit directly in frames with 41mm ID bottom bracket shells. Complete kit for one frame Includes: (2) Enduro BB86 to 29MM Dual Row ABEC 3 Stainless Steel Bearing (2) 0. 5mm crank spacer (2) 1. 0mm crank spacer (2) 5.