• Shimano Ultegra – RD-R8250
ceramic-hybrid and XD15 with ceramic or stainless balls
and wear resistance of all the standard 440-series stainless alloys with high carbon content
foam rings and crush washers for Fox 40mm suspension forks
Though stainless steel has 20% less load capacity and is slightly softer than our standard 52100 chromium steel used in most of our bearings
BKC-0801 - BSA Thread-In, Ceramic-Hybrid, XD15, Angular Contact, Bearing Bottom Bracket for BSA Threaded Framesets for Shimano 24mm Cranksets • Shimano Ultegra – RD-R8250BKC 0801 BSA Thread In, Ceramic Hybrid, XD15, Angular Contact, Bearing Bottom Bracket for 68mm BSA framesets and Shimano (24mm) Cranksets You may find the following tools useful for installation and servicing: For bottom bracket installation: BBT 44x16 24 Pro Cup socket tool for 44mm x 16 spline bottom brackets and Shimano 24mm spindle cranksets BBT 010 Bottom Bracket Flat Wrench for 44mm x 16 spline and 52mm x 16 spline BBT 001 B Shimano crank arm