

Cross-compatible without sacrificing performance, the e*thirteen Helix Race 13-52t 12-Speed Cassette is specifically engineered for steep terrain where our climbing speeds are high and descents are gravity-powered. It uses 13T, combined with a 32T chainring, at 85rpm cadence, to deliver speeds just beyond the speed-limited assistance of most e-Bikes. The 52T lowest gear and closer steps help us clean the most technical climbs with newfound ease. Sure, the Helix R 13-52T was made for e-Bikes, but it also improves the ride experience for analog riders, allowing all to optimize cadence on steep climbs and let gravity do the work on the way down. Just like all e*thirteen cassettes, the Helix Race 13-52t offers seamless cross-compatibility with SRAM, Shimano, and TRP 12s drivetrains and improved shifting precision and wear life.
Price: $345.95 from Backcountry
| Merchant | Price | |
|---|---|---|
| $345.95 | Visit Store |
e*thirteen expanded drivetrain possibilities for every rider with our original 9-50T Helix Race Cassette with 533% gear range. Our proprietary 9t sprocket and patented two-piece construction gave riders an unprecedented ability to build the drivetrain...
Engineered for E-bike durability and cross experience compatibility with SRAM™ and Shimano™ drivetrains. This 9-50T combination is the hot set up for your 12 Speed MTB and allows for a 2 tooth smaller front chainring, shorter chain length, more clearance...
The Helix Race 107 BCD Chainring is a high-value quality upgrade for Gravel and Road Cyclists using 4-bolt 107 BCD cranks such as SRAM® XPLR or Power Meter Cranks like Quarq Force or Rival. Take full advantage of e*thirteen’s widest range cassettes...