Surly DUH System - Single Speed Chip and Hardware Teeth-120t The innovative design of the

The innovative design of the outer chainring ensures faster quieter shifts thanks to the contoured pin and the symmetrical design of the inner chainring teeth provide improved stability with chain crossovers

hard consistency but still gives you good grip

Women’s-specific last — comfort-oriented toe-box and instep shaping

200-hour battery life

Surly DUH System - Single Speed Chip and Hardware Teeth-120t The innovative design of theIncludes a Surly DUH system single speed chip and hardware to transform a geared bike into a single speeding machine. You will also need a Surly DUH single speed rear thru axle (FS0270 sold separately) to complete the setup. Note: The Surly DUH single speed chip and hardware only work with the Surly DUH single speed thru axle.