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Bottom Bracket XTR SM-BB93


XTR M9000 series, the most advanced XTR mountain bike components and wheels to date. With this high-end XTR line available in both race and trail “Rider-Tuned” product families, SHIMANO leverages its engineering leadership producing the industry's highest performing mountain bike component group.

Inspired by the versatility and capability of today's riders and the terrain they tackle, XTR offers refined and tested solutions engineered for the way they ride.

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