Surly DUH System - Single Speed Chip and Hardware

Surly DUH System - Single Speed Chip and HardwareIncludes 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.

663 Fork Type Not Included Frame Material Carbon Frame Type Suspension Color Carbon Mfg Size Large

Model Boost Replacement Frame Thru-Axle

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Two 3M Scotchlite reflectors

Bottom Bracket: BSA sealed BB

Bead Shield reinforcing guard for extra bead protection TPI 320 Color Black/Tan Weight 255 Defined Color Tan ISO Width (mm) 26 ISO Diameter 622 / Road / 29" Tire Intended Use Road Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 28 Tire Type Clincher

With new refinements for seamless 12-speed shifting the Ultegra crank is now offered in a wide variety of lengths bringing performance and improved fit for smaller riders triathletes and riders with specific biomechanic requirements

Hookless Compatible Flat Protection Tread and Sidewall Color Black/Brown Weight 580 Defined Color Brown ISO Width (mm) 35 ISO Diameter 622 / Road / 29" Tire Intended Use Cyclocross Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 35 Tire Type Tubeless Ready Clincher

With a wide collection of fork and frame mounts you can now choose to mount fenders

Valve adapters that allow for high flow typically 3x that of standard Presta valves

Designed for True Adventure

and style on every session—whether you’re hitting Ottawa Bike and Trail or dialing in tricks at your local spot