e*thirteen Helix Race GR Direct Mount Chainring - For use Helix Race GR Crank Model=P ZERO Race Tire Geometrically designed for kids six Weight-653

e*thirteen Helix Race GR Direct Mount Chainring For use Helix Race GR Crank Model=P ZERO Race Tire Geometrically designed for kids six Weight 653 Geometrically designed for kids six and up and forged of sturdy superlight aluminum These are compatible with Shimano M525 M515 pads Featuring e*thirteen’s M4 narrow wide tooth profile they deliver improved chain retention reduced noise and system wear and seamless compatibility with both Shimano and SRAM drivetrains (including T type) Gravity optimized direct mount chainrings designed to pair perfectly with Helix Race GR cranks and withstand the punishment of downhill and bike park