SRAM PG 730 PowerGlide MTB Bike Cassette 7 Speed - 12-32. Optimized for MTB, this cassette offers reliability, durability, and better performance through an optimal tooth profile and shift ramp design for quick and positive index shifting. It is compatible with most major 7-speed systems, including Shimano and SRAM. Features: Speed: 7s. Gearing: 12-32t. Material: Steel. Weight: 302g (12-32).