e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount mixed wheel size Broached splines are made exactly

Broached splines are made exactly the same for every cog every time

Axle Type 12mm TA Speed 13 Freehub Body Campagnolo N3W

CNC machined for weight reduction

Please review the instructions linked in the Tech section to determine if this rack is compatible with your bike

Features a construction process that combines rigid molded panels with flexible 600 denier fabric for rigidity and water repellency

e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount mixed wheel size Broached splines are made exactlyHelix Race 8 Bolt Chainrings are an update to any 8 bolt drivetrain. Exquisitely machined from 7075 AL they're stiff and durable and provide a significant weight reduction over competitors. A unique four bolt locking interface reduces assembly weight while improving longevity and ease of assembly and maintenance. Featuring e*thirteen's M4 narrow wide tooth profile they deliver excellent chain retention long wear life and cross compatibility. Helix