Ethirteen Helix Sram XD Cassette 12s 9-50T

e*thirteen Helix Race Cassette 12s 9-50T Intergalactic Blue Compatible with Sram XD and XDR drivers Helix Race 12-speed, 556% Range, 384g More Range, Less Weight The HELIX Race Cassette is an upgrade to SRAM™ Eagle™ drivetrain*, with more range than any other cassette on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain. PRODUCT FEATURES Compatible with SRAM™ 12 speed drivetrains 2-piece design allows for replaceable aluminum cogs E*spec uprated for E-bike use RIDER BENEFITS Reduces un-sprung rear wheel weight for improved suspension function and handling Excellent shifting with SRAM™ systems without compromise e*thirteen’s wider range and 9 tooth cog allows riders to run a 2 tooth smaller chainring for more clearance and reduced weights *XD™ driver required. *Hope XD drivers are undersized at the clamp location and require a Cassette Shim Kit that is included with the 9-50T cassette in the box. PRODUCT SPEC Compatibility Compatible with all SRAM™️ Eagle 12 sp, drivetrains. Not compatible with SRAM™️ Transmission™️ / T-Type™️ systems. Freehub Mount XD™ and XDR™ (with shim) Drivers Only Material 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life. Range 556% Size 9-50T: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50 Speeds 12 Speed Weight 384g