SRAM XG 1250 12 Speed CassetteCombining renowned gearing technology with a tough construction, this 12 speed cassette offers dependable performance for road and gravel riding disciplines. It features a high-quality nickel-chrome plating, which gives it fantastic durability as well as quiet operation on your travels. Benefitting from X-Range gearing, it also achieves a wider range and higher jumps, so riders can enjoy smoother and more consistent shifting wherever their ride takes them. 12 Speed Cassette with X-Range GearingDue to today's drop bar bikes being faster and more capable than ever before, riders want a shifting set-up with wide-range gearing to match their wide range of cycling pursuits. But, as the range is only half of the equation, they also want a drivetrain that offers the right gear for any situation. With more range, tighter jumps, and smoother shifts, this 12 speed cassette makes it easier to get the performance you want from your drivetrain.SRAM is taking X-Range to another level. Its premier gearing technology, which utilises tight jumps between chainrings and a wide range, 10-tooth start cassette, is now available for Rival. This includes cassettes that feature smooth, precise shifting in ranges that cover road, gravel, and everything in between.- X-Range gearing gives you more range and a smoother gear progression, so you're always in the right gear- Nickel chrome plating for quiet and durability- Full Pin construction for durability and light weight- Designed to work with an XDR driver bodyFeatures: Finish: Nickel Chrome plating Use: Road, Gravel Speed: 12 speed Driver Body Compatibility: SRAM XDR Gearing: 10-30T Option: (10,11,12,13,14,15,17,19,21,24,27,30); 10-36T Option: (10,11,12,13,15,17,19,21,24,28,32,36)Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.