The benchmark of cross country component design
XTR? has been designed to give that expected Shimano reliability while adopting a new generation of shifting, drivetrain and braking systems. From the easy and flexible shifting performance of the Dual Control? shift lever to the super-lightweight, linear response, & ultra-light disc brake design, XTR continuouss to be the benchmark of off-road cross-country component design.
Shimano XTR M970 Outboard Bottom Bracket is E-type compatible and features cartridge bearings. Integrated bottom bracket and crankset design reduces the number of parts, significantly cuts down weight and increases rigidity. Hollowtech II designs allow the bottom bracket bearings to be spaced more widely. This dramatically changes the loads on the bearings to increase rigidity and bearing service life.
Chain Line: 50mm
Shell Width: 73/68mm
Shimano XTR® and Dual Control™ are trademarks and registered trademarks of Shimano American Corporation and Shimano Inc."