If you’re lookin’ to blacken out your track bike’s drivetrain, check out the newest collaboration with San Francisco’s Mash, who teamed up with Japan’s Izumi on three new chains. Offered in all black (pictured,) black with silver bushings, or black with gold bushings. Check out more at Mash SF.
![Mash SF x Izumi Blackened Track Chains](https://media.theradavist.com/uploads/2018/04/izumi-x-mash-jet-black-chain-series-1-8.jpg)