HELIX RACE 12-SPEED 9-45T GRAVEL CASSETTE

DROP IN GRAVEL UPGRADE:Helix Race Gravel 12-speed, 500% Range, 310g The Helix Race 12-Speed 9-45T cassette extends legendary Helix shift performance and cross compatibility with SRAM™ and Shimano™ 12-speed drivetrains, to the light weight Gravel and XC marketplace. PRODUCT FEATURES Compatible with SRAM™ 12 Speed Mountain and Gravel Drivetrains, and Shimano™ 12 Speed MTB drivetrain 2-piece design allows for replaceable aluminum cogs RIDER BENEFITS A drop-in replacement for SRAM™ XPLR™ 10-44T Cassettes - A 13% increase in range! Excellent shifting with Shimano™ and SRAM™ systems without compromise Flat-Top Chain and XPLR™ Derailleur Compatible *Hope XD™ drivers are undersized at the clamp location and require a Cassette Shim Kit.   PRODUCT SPEC Compatibility *All e*thirteen cassettes require XD driver for mounting   Please reference our hub compatibility article to ensure the e*thirteen cassette will work on the hub you have before purchase. Freehub Mount XD™ and XDR™ Drivers Only Material 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life. Range 500% Size 9-45T:9-11-13-15-17-19-22-25-28-32-38-45 Speeds 12 Speed Weight 310 Grams