Sram: START WITH EAGLE 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 ecosystem affords with a simple upgrade to splined-drive body wheels. The PG-1230 is the only Eagle 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. THINGS TO REMEMBER Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. Eagle is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. The PG-1230 is the only Eagle cassette that meets our durability requirements for E-MTB applications. FEATURES AND BENEFITS Compatible with a splined driver body. This PG-1230 cassette is an integral part of the SRAM Eagle drivetrain Ecosystem. Wide 11-50t gear range perfect fit for any ride. Optimized gear steps across entire range. SPECIFICATIONS Speed (CS): 12sGearing: 11-50tCog finish (Cassette): Black Technology (Cassette): PGCog sizes: 11-50t: 11, 13, 15, 17, 19, 22, 25, 28, 32, 36, 42, 50