SHIMANO DURA-ACE FC-7710 NJS Chainring
The Shimano Dura-Ace 144mm bolt circle track chainring is the perfect high-quality replacement for a 144mm bolt-circle track crank. The stout 1/8" chainringｓ will hold up to the strongest sprinter or for the Urban Assault fixie courier bike.
Features
1/2" x 1/8"
144mm track bolt circle
Use with 1/2" x 1/8" track chain
Heat treated and anodized for strength