LIGHTER WEIGHT. LONGER WEAR LIFE.
Helix Race e*spec Chainrings merge cutting-edge design and performance. Designed for TQ HPR50 equipped e-bikes, this 1pc direct mount chainring is forged from 7075 AL for lightweight durability, impressive stiffness, and a standout technical aesthetic.
The new M4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano, Sram, and TRP 11/12s drivetrains, including SRAM ™ T-Type™. It's available in black and silver for 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.
Chainline
55mm
Color
Black, Sterling Silver
Compatibility
TQ HPR50 Motor
T-Type Chain Compatible
T-Type Chain Compatible
Features
Lightweight, stiff, long wearlife, with technical aesthetics and enhanced chain retention. Cross compatibility with Shimano, Sram, and TRP 11/12s drivetrains.
Material
Forged-CNC 7075 AL
Mount
Fits cranks on TQ HPR50 ISIS spindle
Pairs perfectly with e*thirteen Helix Race e*spec Alloy Cranks
Pairs perfectly with e*thirteen Helix Race e*spec Alloy Cranks
Size
32T, 34T
Weight
32T: 95g
34T: 102g
34T: 102g