CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For 24mm/Shimano Spindle MTB BLK MFPN=TC2251B Threads into crank arm and

Threads into crank arm and rotates on smooth steel bearings

ergonomic end-piece allows for comfortable pumping with pressure from the palm of your hand

and crafted to be as compact and lightweight as possible

while the alternating diagonal pattern of the grip keeps the rider’s hand in place with or without gloves in all conditions

5 Thread Length (mm) 13 Thread Pitch 12 x 1 Color Black Weight 64

CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 73mm For 24mm/Shimano Spindle MTB BLK MFPN=TC2251B Threads into crank arm andA bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls custom engineered seals and precision dust covers delivering up to 500% better moisture protection while still providing ultra low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All