Cassette technology optimized for MTB. More reliable. More durable. Better performing, thanks to an optimal tooth profile and shift ramp design for quick and positive index shifting. Go climb a mountain. FEATURES a Our cassette performance is optimized by material choice, tooth profile and shift ramp design for quick and positive index shifting a PowerGlide II(TM) 8-speed performance in an all-steel cassette. SPECIFICATIONS a SPEED (CS) 8s a GEARING 11-28t, 11-30t, 11-32t a COG FINISH (CASSETTE) Silver a TECHNOLOGY (CASSETTE) PG a COG SIZES 11-28t:11,12,14,16,18,21,24,28, 11-30t:11,13,15,17,20,23,26,30, 11-32t:11,12,14,16,18,21,26,32