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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Challenge has developed a new technology applied to handmade construction
Our new Easy-Fit Shape moulding process gently pre-forms the tire for easier mounting and inflation
A seamless latex inner tube with 60mm valve stem improves compliance and cornering confidence
Top-Tier Protection
GRAVEL GRINDER Pro - Handmade Clincher TRACK Challenge has developed a newMulti Purpose with Bite Gravel Grinder is for cruising at speed and cornering with more confidence in soft and wet conditions. The diamond center tread clears dirt and mud and grips grass and sand while the wide spaced side knobs hook soft ground for traction and help guide the tire through ruts. The mixed tread offers solid rolling resistance with a bit more cornering grip. This handmade PRO version combines a supple Super Polyester casing with our
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