
The Surly DUH system single-speed rear axle helps transform your geared bike into a single-speeding machine. You will also need a Surly DUH single-speed chip and hardware (FS0268 - sold separately) to complete the setup.
- Note: The Surly DUH single-speed thru-axle only works with the DUH single-speed chip and hardware.
- Rear Axle Type: 12mm Thru x 148mm
