Shimano Bottom Bracket XTR SM-BB-93 68/73mm
$52.00
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Wt: 73g For threaded bottom bracket Fits various frame Durable enough for mountain bike usage Better sealing performance Smoother rotation Lightweight to offset weight disadvantage of drivetrain. -19.3g (SM-BB93 vs. SM-BB91-41A) Bottom Bracket
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$43.99
$52
(+$8.01)