Ride anywhere with the wide-range PG-1230, 11- to 50-tooth Eagle 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. FEATURES a Compatible with a splined driver body. a This PG-1230 cassette is an integral part of the SRAM Eagle drivetrain Ecosystem. a Wide 11-50t gear range-a perfect fit for any ride. Optimized gear steps across entire range. SPECIFICATIONS a SPEED (CS) 12s a GEARING 11-50t a COG FINISH (CASSETTE) Black a TECHNOLOGY (CASSETTE) PG a COG SIZES 11-50t:11,13,15,17,19,22,25,28,32,36,42,50 a WEIGHT (G) 615