This is the Hope Single Downhill Chainring – 104mm BCD. Hope’s new aluminium chain rings allow the perfect set-up with single speed, 1 x9 and 1 x 10 drivetrains and when using a chain guide. CNC machined 7075-T6 aluminium provides the perfect blend of light weight and strength. A hard anodised finish makes these ultra durable and increases longevity. Available in 104mm PCD, 4 bolt pattern and in 32t, 34t, 36t, 38t and 40t sizes. Finished in Black, Gold or Silver.