Race Face's X-Type external bottom bracket has been totally redesigned and upgraded. Bearings, sealing and machining precision are all improved to create a smoother running, longer lasting BB set which is now fully serviceable.
• Filled with Phil Wood waterproof grease and are compatible with Shimano Hollowtech II cranksets
• Premium grade-5 chromium steel ball bearings
• Dual-surface (radial and axial) face-wiper seals (snap ring retained)
• Designed to be used with cranksets that have either X-Type or EXI spindles
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