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Overview

What is the Challenge Gravel Grinder TLR built for?

The Gravel Grinder TLR 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 brown sidewall version in 700 x 33. 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 02049

Size
700 x 33
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
Brown

FAQ

Good questions

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What is the difference between the Brown and Black versions?

Only the sidewall color. The Brown and Black 700 x 33 Gravel Grinder TLR share the same tread, casing, compound and puncture protection.

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.

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.

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