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.
With our vulcanized construction, we start where other tires stop - we utilize ultralight 60TPI nylon casings and superior tread compounds - to give our traditional vulcanized tires excellent ride feel and quality that is more affordable than our handmade offerings.
Challenge clincher tires are designed for use with tubes and hooked rims.
Challenge vulcanized tires take full advantage of our construction know-how and awesome tread designs – It's tough to beat the durability, good performance and low cost of vulcanized construction. We work with proven factories to bring iconic Challenge models to more riders.
SERIES: RACE (Vulcanized)
Value and Performance – It's tough to beat the durability, good performance and low cost of vulcanized construction. Our RACE series brings iconic Challenge tread patterns and compounds to more riders.
CASING: Nylon Superlight 60TPI
Vulcanized Nylon tire casings are the industry standard. Easy to produce and offering excellent durability and high performance at a moderate cost, they are the most common variety of tire available.
COMPOUND: SMART-V
A specially formulated version of our SMART compound that is adapted to the different construction of vulcanized tires
PUNCTURE PROTECTION: PPS
Our Puncture Protection System (PPS) is a tough, tightly-woven fabric placed between the tread and casing to increase puncture resistance.
Which is the best blend of speed, rolling resistance and durability for my riding? You can learn more about our Road Line here: Selecting a Challenge Road Tire
Which tire is best in sand, snow or mud? You can learn more about our Cyclocross Line here: Selecting a Challenge CX Tire
Are Challenge TLR Tires Compatible with Hookless Rims?
The following Challenge TLR tires are compatible with ISO/ETRTO-compliant hookless rims:
• Getaway RACE Series TLR tires
• All Handmade TLR tires in sizes 33–45C
• All Criterium RS TLR sizes
Are Challenge Tires Difficult to Install?
A tight fitting TLR tire is critical for holding air and keeping the tire on the rim. You can find mounting videos for TLR and Tubulars here: Mounting Instructions
