ORIGIN 8 SEMI-INT TWISTR 1-1/8 ZS44/28.6|ZS44/30 BLACK CHAINS including high strength carbon fibers

including high strength carbon fibers - This helps to allocate stiffness and flex where needed

T47 threaded BB cups for T47 frames and 22/24mm diameter spindle cranks

41-Thermal Lifetime Warranty

Larger width for wider street and cross style tires

Double butted AL6061-T6 construction

ORIGIN 8 SEMI-INT TWISTR 1-1/8 ZS44/28.6|ZS44/30 BLACK CHAINS including high strength carbon fibersHighly polished sealed angular contact premium bearings ensure smooth operation CNC machined AL6061 top cover is sealed to keep moisture and grit away from the bearings CNC machined AL7075 crown race protects the lower bearings and fork AL6061 top cap, forged stainless steel bolt, and star nut