Ride anywhere with the wide-range PG-1230, 11- to 50-tooth Eagle(TM) cassette. The NX cassette gives riders every bit of the climbing range that the Eagle(TM) ecosystem affords with a simple upgrade to splined-drive body wheels. The PG-1230 is the only Eagle(TM) cassette designed to be durable enough to withstand the increased demands of E-MTB applications and a perfect solution to heavy-duty use and abuse. FEATURES/BENEFITS Compatible with 8-, 9- and 10-speed splined driver bodies. This PG-1230 cassette is an integral part of the SRAM Eagle(TM) drivetrain Ecosystem. Wide 11-50t gear range-a perfect fit for any ride with optimized gear steps across entire range. SPECS TECHNOLOGY HIGHLIGHT(S): Power Glide WEIGHT: 615g MATERIAL: 8 lightweight, stamped steel cogs and 4 high-strength steel cogs pinned onto an aluminum spider SPEEDS: 12 COLORS: Black COMPATIBILITY: All levels of Eagle(TM) drivetrain systems.