Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40

Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40 Challenge

Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40

Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40

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Why Is the Gravel Grinder Pro Handmade TLR Worth the Step Up?

The Challenge Gravel Grinder Pro Handmade TLR is what happens when Challenge applies its highest construction standards to a gravel tire. A fast-rolling diamond center keeps you efficient on smooth sections while aggressive shoulder knobs activate exactly when the terrain gets soft, muddy, or sketchy enough to demand them. The difference you notice immediately is the 260TPI SuperPoly casing, which delivers the supple, road-bike-like feel that makes long gravel days significantly more comfortable than what you get from a standard nylon casing.

Handmade construction means tighter tolerances, better bead consistency, and a tire that behaves more predictably under load. Protection comes from PPS2, Challenge's dual-layer system combining a sub-tread puncture protection layer with an additional inner casing layer that holds up against the sharp debris that eats standard tires alive. TLR tubeless-ready, compatible with hooked rims, and sized at 700 x 40. At $76.99, it is the tire for riders who want the performance gap between standard and premium to show up on every ride.

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$80.99
$80.99 $89.99
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  • Estimated delivery: May 25 - May 29

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Specifications

  • Size: 700 x 40
  • Casing: 260TPI SuperPoly
  • Construction: Handmade
  • Protection: PPS2 dual-layer puncture protection
  • Type: TLR (Tubeless Ready)
  • Rim Compatibility: Hooked rims only
  • Tread: Diamond center with aggressive shoulder knobs

FAQ

What is PPS2 and how does it protect against flats?

PPS2 is Challenge's dual-layer protection system. It combines a sub-tread puncture protection layer with an additional inner casing layer for enhanced resistance against sharp debris. When combined with tubeless sealant, it makes for an extremely flat-resistant setup.

Is the 260TPI SuperPoly casing noticeably different from standard?

Yes. The higher thread count results in a more supple, compliant tire that conforms to the terrain rather than riding over it. The difference is most noticeable on extended rides where tire feel translates directly to fatigue and confidence.

How does handmade construction affect performance?

Handmade tires benefit from tighter production tolerances, more consistent bead seating, and better overall uniformity. This means more predictable cornering behavior and a more balanced ride compared to machine-built alternatives.

Best For

Serious gravel racers and performance-oriented riders who want the best combination of suppleness, puncture resistance, and traction in a 700x40 package. The Pro Handmade is the go-to choice for longer gravel events where tire comfort and reliability matter as much as speed.

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