e*thirteen Helix Race e*spec Chainring, 36T, Bosch Gen4 Direct Mount, 13mm Offset, Shimano/SRAM 11/12s Compatible, super-alloy-racing 36 NA: Upgrade low friction

36 NA: Upgrade low friction air piston assembly & upgrade topout spacer ring

Durable casing features a 1

Dynamal alloy used in the extrusion has high tensile strength and yield without affecting fatigue life

34 Float NA2 Evol (Performance

" Zipp 1Zero HiTop SW Rear Wheel Rear Wheel

e*thirteen Helix Race e*spec Chainring, 36T, Bosch Gen4 Direct Mount, 13mm Offset, Shimano/SRAM 11/12s Compatible, super-alloy-racing 36 NA: Upgrade low frictionHelix Core e*spec Direct Mount Chainrings feature a narrow wide tooth profile, for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold formed from steel and then heat treated to provide excellent durability and toughness, all at a price that's easy on your wallet. e*thirteen Helix E*Spec Direct Mount Chainring eBike Chainrings and Sprockets EAN: 4710751509672