Our original PF30 bottom bracket is a significant upgrade to any OEM PF30 bottom bracket. Two machined aluminum cups with replaceable bearings 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.Specifically designed for installing 30mm spindle diameter cranks in PF30 (46mm ID BB shell) frames without the need for any adapters.Bottom Bracket Includes:- BB Cups with bearings- 2 - Silicone dust seals- 2 - 0.5mm crank spindle spacers- 2 - 1.0mm crank spindle spacersSpecifications:- Bottom Bracket/Frame Interface: PF30, PF30A, 386EVO, Specialized Carbon OSBB, BBRight™ Press Fit- Bottom Bracket Shell Width: 61mm* to 86.5mm- Bottom Bracket Shell I.D.: 46mm- Over Bearing Width: 68mm in 68mm wide shell- Crank Spindle Diameter: 30mm- Weight: 112g