DUH System - Single Speed Thru-Axle Trail To offer the best rider

To offer the best rider experience for every frame size

Threaded bottle cage bosses located at the rear of each rail provide mounting locations for accessories: bottle cages

Custom dropouts ready to run single-speed or internally geared hub setups

upgrade your bike-supported business’s two-wheeled fleet

And durability comes in pretty handy when you’re talking about the one ring that is bearing the brunt of all your miles

DUH System - Single Speed Thru-Axle Trail To offer the best riderThe 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.