Cassette SRAM PG-820 8-speed

PowerGlide II™ 8-speed performance in an steel and DuraBlast cassette.For 8-speed SRAm systemsTeeth (optional): 11-32 OR 11-30 OR 11-28Lock Ring Material: SteelSprocket Material DuraBlastCompatibility Performance optimized with SRAM ChainsPowerGlide II - Cassette technology optimized for offroad. 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.