ISIS cranks have been around a long time, and they're still a great design. If you've got one, keep it in top working condition with these quality crank bolts from FSA. - ISIS-compatible - M12

Eleven81's AHD Adapter enables the use of a threadless stem with threaded forks and headsets.

• Designed for flat-sided tubes up to 23mm thick • Firm spring prevents movement while riding • Two bracket options to better fit small and large frames