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e*thirteen spared no expense creating the Helix R e*spec Chainring. Designed for Bosch Gen 4 e-bikes, this direct mount chainring is forged from 7075 AL for stiffness, strength and long wear life. Extensive CNC machining and our M3 tooth profile deliver an ultra lightweight upgrade chainring that offers the best cross compatible Shimano/SRAM chain retention and eye-catching technical aesthetics available. A custom outer dust cover enhances the integrated style and helps to prevent contamination.
The Helix Race E*spec Ring is fully compatible with Shimano, SRAM, and TRP 11 and 12 speed drivetrains, and comes in many colorsfor coordination with e*thirteen cranks, cassettes, stems, tubeless valves and more. Available in 32T and 34T sizes, it supports dropping a chainring size to take full advantage of e*thirteen’s proprietary 9T smallest cog, wide range cassettes.
Tax included.
Shipping PolicyFree Shipping at $400.00 (wheels excluded)
Product Spec
Chainline
53mm, (55mm available soon)
Color
Black, Bronze, Eggplant, Naranja
Compatibility
Bosch CX Gen4 Motor
Features
Lightweight, stiff, long wearlife, with technical aesthetics and enhanced chain retention. Cross compatibility with Shimano, Sram, and TRP 11/12s drivetrains.
Included
Custom integrated Dust Cover
Material
Forged-CNC 7075 AL
Mount
Direct Mount on E*thirteen Helix Race E*spec Alloy Cranks
no, thank you