GRAVEL GRINDER Pro - Handmade Tubeless Tubular
The Gravel Grinder is our original and often-imitated fast gravel design. It combines a speedy diamond center for low rolling resistance with aggressive shoulder knobs that reliably hook-up when the terrain gets soft, muddy or a bit sketchy.
This handmade PRO version combines a supple, 260TPI Super Polyester casing with our durable SmartPlus compound.
A tubeless tubular is glued to the rim just like a regular tubular and from the outside there is no way to detect a difference, but an interior coating makes sewing an inner tube inside the tire unnecessary. This "tubular without a tube" offers next-level protection from pinch flats or punctures when combined with Challenge Smart Tubeless Sealant
GRAVEL GRINDER Pro - Handmade Tubeless Tubular
More PRO Series Gravel Tires
GRAVEL GRINDER Pro - Handmade TLR
GRAVEL GRINDER Pro - Handmade Tubeless Tubular
Key Features
CONSTRUCTION: Handmade
Challenge handmade tires combine comfort, performance, and grip in a way other tires can't match. Our handmade tires are assembled step-by-step by experienced craftspeople. High quality natural glues and latex coatings are applied to ultra-supple casing materials like silk, cotton, or polyester. The result is a small-batch tire with a ride feel that is simply on a different level.
SERIES: PRO
Everyday Luxury – Our workhorse handmade tire is the PRO series, delivering performance and ride feel unmatched by traditional vulcanized tires. Perfect for the rigors of daily riding.
CASING: Super Polyester 260TPI
Super Polyesters with higher thread counts of 220-300tpi make up our most affordable handmade casings. Polyester is much softer and stronger then nylon, is impervious to water and quite durable.
COMPOUND: SMARTplus
A tougher and more cut-resistant rubber compound for the demands of gravel and rough terrain. SMARTplus wears longer to keep tread edges sharper, improving confidence over mixed surfaces.
PUNCTURE PROTECTION: PPS2
Our tires designed for use on rough roads, cobbles and gravel are built with an additional layer of PPS (PPS2) on the inside of the casing.
Technologies
Challenge Tire FAQs
Selecting a Road Tire
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
Selecting a Gravel Tire
Which model is best for the terrain you ride? You can learn more about our Gravel Line here: Selecting a Challenge Gravel Tire
Selecting a Cyclocross 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