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

- PolyCarbonate headset spacers with the FSA logo - Variety of colors, sold in bags of 10

- Self Extracting crank bolt Suitable for: - Road: Powerbox alloy, Powerbox Supercompact alloy, Energy, Gossamer cranksets - Off-road: Powerbox alloy, KFX, Gradient cranksets