Wheels Manufacturing PF30 Outbound bottom brackets are for use with frames that utilize a PF30 bottom bracket standard. Features two machined aluminum thread together cups that keeps the bottom bracket stable in the frame, increases bearing life, and simplifies maintenance. This means no more creaking, smoother operation, longer bearing life, and quick bearing replacement.

• Note: Spindle length must be 103mm or longer when used in a 68mm wide shell, 108mm or longer when used in a 73mm wide shell
• Enduro ABEC-3 sealed bearings are replaceable
• Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races provide smooth crank rotation
• Machined aluminum cups with durable anodized finish
• Fits frames with 61mm* to 83mm bottom bracket shell width (* Specialized Carbon OSBB with 61mm shell width will need additional cup spacers)
• Made in the USA