Chris King's Press Fit 24 bottom bracket is machined to aerospace-level tolerances to ensure that your bike has the precision fit that you have come to expect from Chris Kings legendary components. Each Press Fit 24 bottom bracket includes their exclusive fully serviceable made-in-house bearings that integrate with our easy-to-use grease injection system to create a bottom bracket with unparalleled performance and durability. Engineered, manufactured and assembled in Portland, Oregon USA 5 year built-to-last warranty Easily serviceable with our integrated grease injection tool Legendary in-house made bearings Available in 9 beautifully anodized colors Responsibly lightweight Designed for 86mm (Road) shells Designed for BB shells with a 41mm ID (Inner Diameter) measurement For 24mm (Shimano) axles