The MINI BLOCK™ X-DOME™ 7-speed cassette is engineered for the optimized gear steps that downhill riders want. Featuring 10–24 gearing with two-tooth steps, this technology eliminates the need for double/triple shifts to get in the gear you want. And because it’s so compact, it’s also light—the lightest cassette in existence. Compatible with any XD wheel, MINI BLOCK™ X-DOME™ technology integrates flawlessly with your SRAM 1X™ drivetrain. With durable JET™ black finish, the cassette looks as tough as it performs—ride after ride.