Challenge Gravel Grinder TLR Tire - 700 x 42 | Black
Tires
Challenge Gravel Grinder TLR Tire - 700 x 42 · Black
Challenge Gravel Grinder TLR Tire - 700 x 42 | Black
The Gravel Grinder is Challenge's tire for cruising gravel at speed, with more cornering confidence when the ground turns soft or wet. Read the overview
At a glance
- Size
- 700 x 42
- Casing
- Nylon Superlight, 60 TPI
- Compound
- SMART-V
- Puncture protection
- PPS
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Overview
What is the Challenge Gravel Grinder TLR built for?
The Gravel Grinder is Challenge's tire for cruising gravel at speed, with more cornering confidence when the ground turns soft or wet. A diamond center tread clears dirt and mud and grips on grass and sand, while wide-spaced side knobs hook into soft ground and help guide the tire through ruts. The mixed tread rolls well and gives you a bit more cornering grip than a pure fast-rolling pattern.
This is the 700 x 42 version with black sidewalls, the widest Gravel Grinder TLR Challenge makes. It comes from Challenge's RACE series, which is vulcanized: a lightweight 60 TPI nylon casing, Challenge's SMART-V compound, and a PPS puncture protection layer between the tread and the casing. It is tubeless ready and compatible with hooked rims only. Challenge recommends its Smart Tubeless Sealant for setup.
All the specs
MPN 02014
- Size
- 700 x 42
- Series
- RACE (vulcanized)
- Casing
- Nylon Superlight, 60 TPI
- Compound
- SMART-V
- Puncture Protection
- PPS (layer between tread and casing)
- Type
- TLR (tubeless ready)
- Rim Compatibility
- Hooked rims only
- Sidewall
- Black
FAQ
Good questions
Get to know Challenge

There's more to Challenge than this one product. Our Challenge page has the full Challenge lineup we carry and more about the brand.
Visit the Challenge page →Can I run the Gravel Grinder TLR on hookless rims?
No. Challenge lists this vulcanized Gravel Grinder TLR as hooked rim compatible. Challenge's hookless-compatible tires are the Getaway RACE series TLR, its handmade TLR tires from 33 to 45C, and the Criterium RS TLR.
How is it different from the Gravel Grinder Pro Handmade TLR?
Both use the same Gravel Grinder tread. This one is vulcanized with a 60 TPI nylon casing. The Pro is handmade with a 260 TPI Super Polyester casing, Challenge's SMARTplus compound and PPS2 protection, and it is hookless compatible.
What conditions is the Gravel Grinder best in?
Challenge built it for riding gravel at speed while keeping more cornering grip in soft and wet conditions. The diamond center sheds dirt and mud and grips on grass and sand, and the side knobs bite in soft ground and ruts.
Reviews
What riders say about the Lab
“Paul does a great job. He got my bike I bought from someone there in their town and had it packed and shipped to me in Austin, TX… It got here in perfect condition!”
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“I recently got back into biking and wanted to add some things onto my bike. They had most of what I was looking for in shop… I'm really happy to have found them.”
Questions about this one?
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