Get the same reliable, lightweight performance BlackBox racers enjoy. Tested on the pro circuit. Proven on the podium. SRAM® PowerGlide II™ 9-speed cassettes meet the demands of MTBers everywhere – from elite racers to weekend trail riders. Our cassettes performance is optimized through tooth profile and shift ramp design for quick and positive index shifting.
Buy SRAM PG990 Cassette 9sp from Chain Reaction Cycles, the worlds largest online bicycle store.