Shimano XTR SM-BB93 HollowTech II Bottom Bracket – Complete MTB Assembly
The Shimano XTR SM-BB93 HollowTech II Bottom Bracket delivers high-performance, maintenance-free operation for serious MTB riders. Engineered with precision-spaced bearings, it provides greater stability, stiffness, and durability compared to conventional bottom brackets, ensuring smooth and efficient pedaling on technical trails.
This complete assembly comes with left and right-hand cups, spacers, inner cover, and O-rings, making installation quick and straightforward. Sealed cups keep out dirt and water, while the lightweight, anodized design reduces weight without compromising strength. Compatible with 68 mm and 73 mm bottom bracket shells, the XTR BB93 pairs perfectly with Shimano HollowTech II 24 mm cranks.
Key Features
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Compatible with 68 mm and 73 mm bottom bracket shells
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Genuine Shimano HollowTech II complete assembly
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Includes left & right cups, spacers, inner cover, and O-rings
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Lightweight seal structure for minimal weight
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Sealed cups prevent dirt and water ingress
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Maintenance-free operation for long-lasting performance
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Durable black anodized finish
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Easy installation
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BB spindle integrated with right crank arm for added rigidity
Specifications
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Model: SM-BB93
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Series: Shimano XTR
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Bottom Bracket Type: HollowTech II Press-Fit
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Crank Compatibility: Shimano XTR 24 mm HollowTech II
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Shell Width: 68 mm / 73 mm
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Weight: Lightweight design