SLX M7100 12-Speed Micro Spline MTB cassette featuring light weight minimal design sprocket carrier Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load Close ratio gearing allows a more efficient use of energy through finer cadence control Sprockets are cut away and drilled to reduce weight without reducing rigidity For use with 12-speed MTB chains Average weight: 513 g for 10-45T Speed 12 Speed
