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Zipp valve extenders for use with removable presta value tubes
front/rear front axle length 125mm thread pitch M12x1
and maneuverability while allowing for unmatched versatility
Swinging hinge saves space when in use and not in use
Compatible with the X1E / X1 / X1F/ X3 cleats (HT exclusive system)
Surly DUH System - Single Speed Chip and Hardware MPFN-TB00329500 Zipp valve extenders for useIncludes 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.
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