Shimano XTR SM-BB93 68-73mm External Bottom Bracket - 24mm - BSA Threaded - 68-73mm YGroup_7033461211181 Environment: The entire product is

Environment: The entire product is 100% recyclable and uses environmentally friendly processes

Just lock and pump

but you'll triple the engagement points going from the standard 18 up to 54

Made from glass-filled nylon

Shimano XTR SM-BB93 68-73mm External Bottom Bracket - 24mm - BSA Threaded - 68-73mm YGroup_7033461211181 Environment: The entire product isLegendary XTR performance! The XTR BB93 is a lightweight BB that features premium bearings and seals to ensure you always have the best possible performance on hand. Compatible with 68 and 73mm shells and 24mm spindles. Features: Compatible with 68 or 73mm shells. Spacers included. Will work with 24mm spindles. Not compatible with 83mm DH cranks.