E*thirteen Helix Race 12s Cassette

$345.95
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Color
Teeth
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Details

Helix Race Close Ratio 12-Speed Cassette – Precision, Durability & Versatility 

The Helix Race Close Ratio cassette is designed for seamless compatibility with Shimano, SRAM, and TRP 12-speed shifters, delivering flawless shifting performance across various drivetrain setups. Engineered with steep terrains in mind, this cassette optimizes cadence and torque for efficient climbing, while ensuring smooth gear transitions under load, whether you're riding an analog or e-bike.

Built with a robust steel and aluminum assembly, the Helix Race cassette is exceptionally durable, featuring an Intergalactic PVD finish that doubles the durability compared to traditional anodized models. Additionally, it caters to speed-limited e-bikes, providing a gear range that helps maintain optimal speed before motor cut-off.

Key Features:

  • Shimano, SRAM & TRP 12-Speed Compatibility – Ensures flawless shifting regardless of cog spacing or chain behavior.
  • Intergalactic PVD Finish – Provides twice the durability of traditional anodized cassettes.
  • Optimized for Steep Terrain – Enhances climbing efficiency and provides smooth shifts under load. 
  • Designed for E-Bikes & Analog Bikes – Accommodates speed-limited e-bike gearing while maintaining cadence control.
  • Robust Steel & Aluminum Construction – Maximizes reliability and longevity.
  • Two Gear Range Options:
    • 9-52t for maximum range versatility.
    • 13-52t for close-ratio performance.
  • Hope Hub Note: Hope XD drivers do not meet SRAM XD specifications and require an additional shim, available from E*thirteen.

Tech Specs:

  • Model: Helix Race Close Ratio
  • Freehub Type: XD
  • Speed: 12-Speed
  • Range: 9-52t or 13-52t
  • Cogs (9-52t): 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 40, 45, 52
  • Cogs (13-52t): 13, 15, 17, 19, 22, 25, 28, 32, 36, 40, 45, 52
  • Weight: 392g (9-52t) / 467g (13-52t)

Designed for both competitive and recreational riders, the Helix Race Close Ratio cassette ensures precise shifts, optimal power transfer, and long-lasting durability. Whether you're tackling steep climbs or cruising on flat terrain, this cassette is built to enhance your riding experience with maximum efficiency.

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