The bottom bracket axle is steadily supported by the wide placed bearings on the basis of HOLLOWTECH II technologies providing highly-efficient power transfer.
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With smoot rotation and better sealing performance, the SHIMANO XTR bottom bracket is durable for mountain bike usage. It is available in threaded and press-fit options.
With smoot rotation and better sealing performance, the SHIMANO XTR bottom bracket is durable for mountain bike usage. It is available in threaded and press-fit options.
BENEFIT
Lightweight to offset weight disadvantage of drivetrain
FEATURE
-19.3g (SM-BB93 vs. SM-BB90A)
FEATURE
-18.5g (SM-BB94-41A vs. SM-BB91-41A)
BENEFIT
Smoother rotation
BENEFIT
Better sealing performance
BENEFIT
Durable enough for mountain bike usage
BENEFIT
Fits various frame designs
BENEFIT
SM-BB93 for threaded bottom bracket
BENEFIT
SM-BB94-41A for press-fit bottom bracket
BENEFIT
Weight: 73g (SM-BB93) 58g (SM-BB94-41A)