Wheels Manufacturing BSA External Bottom Bracket - 30mm - BSA Threaded - 68-73mm - Standard Bearings YGroup_7033405177901 ZS49 or EC34 lower cups

ZS49 or EC34 lower cups only)

Wing Material: Stamped steel

Keep you warm and toasty when it's cold and wet

Who's this item for: Designed for Enduro riding but could be used for trail or even DH

Wheels Manufacturing BSA External Bottom Bracket - 30mm - BSA Threaded - 68-73mm - Standard Bearings YGroup_7033405177901 ZS49 or EC34 lower cupsThis is a direct replacement for OEM BSA threaded english bottom brackets for either straight 24mm Shimano (Raceface EXI and some FSA cranks) or stepped 22 24mm SRAM Truvativ of some FSA Mega Exo cranks. High quality aluminium cups coupled with legendary Enduro Bearings and silicone seals for fantastic performance in all conditions. Bearings are completely replaceable, so this will be the last bottom bracket assembly you'll ever need to buy!