Wheels Manufacturing's original PF30 "press fit" bottom bracket is a significant upgrade to any OEM PF30 bottom bracket. Two machined aluminum cups offer increased durability and bearing life, while keeping a simple press together method for installation and maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Direct replacement for SRAM, FSA, and other PressFit 30 bottom brackets. Grade 10 Chromium Steel Balls: High precision balls are within 10/1,000,000? round, twice as round as the industry standard, at its highest level. 52100 High Carbon Chromium Alloy Races: Vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-3 precision and noiseless movement. Riveted Steel Retainer for toughness, ABEC-3 tolerances and noise tested, C-3 or C-N Internal Clearance Required Tools: Economy Press (PRESS-4) PF30 Bearing Adapter (PF30-OB) Features: Enduro ABEC-3 Bearings Compatible with PF30, BB386EVO, Specialized Carbon OSBB, and BBRight Press Fit frames Will accept 24mm and 24/22mm cranksets using Wheels Adapter Shims Specifications: Frame Interface: PF30, BB386EVO, Specialized Carbon OSBB, BBRight Press Fit Spindle Interface: 30mm (RaceFace/Easton CINCH, 386 EVO, Rotor 3D+, e*Thirteen P3 Connect, Zipp Vuma) Bottom Bracket Shell ID: PF46 Shell Width: 61mm to 86mm Bearings: ABEC-3 Sealed Color: Black Weight: 112g
