Bosch - Helix Race e*spec Chainring

LIGHTER WEIGHT. LONGER WEAR LIFE. Helix Race e*spec Chainrings merge cutting-edge design and performance. Designed for Bosch™ equipped e-bikes, this 1pc direct mount chainring is forged from 7075 AL for lightweight durability, impressive stiffness, and a standout technical aesthetic. Its custom metal dust cover enhances style and minimizes seal and lockring contamination. The new M4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano, Sram, and TRP 11/12s drivetrain, including SRAM ™ T-Type™. It's available in a variety of colors for coordination with e*thirteen cranks, cassettes, stems, tubeless valves, and more. The Bosch version is available with 13mm offset (53mm chainlne) and 15mm offset (55mm chainline) in 32T and 34T sizes.