Surly DUH System - Single Speed Chip and Hardware MPFN-TB00329500 Forged alloy BB386Evo spindle

Forged alloy BB386Evo spindle

and maneuverability while allowing for unmatched versatility

Zipp valve extenders for use with removable presta value tubes

Attachment Method Straps Color Orange Defined Color Orange Number of Compartments 1 Primary Material Nylon Total Volume 91 Waterproof Yes Weight 116

Surly DUH System - Single Speed Chip and Hardware MPFN-TB00329500 Forged alloy BB386Evo spindleIncludes 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.