Challenge - GRAVEL GRINDER-PRO-H-TLTU-Tan-260tpi-28inx36

Consumer Product Safety Bulletin - March 13, 2019

Make your mark on the gravel scene with the Gravel Grinder. This tyre combines a fast rolling diamond centre with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy. Colour: Tan.
TPI: 260.
Recommended Pressure:
36mm 30-60psi.
Puncture Protection: PPSGANZO + PPS2.
Rubber Compound: SMARTPLUS.
Construction: Handmade.
Series: PRO.
Size: 28".
Width: 36mm.
Casing: SuperPoly.
Tube Type: Tubeless.

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PPS Ganzo - A higher level of puncture protection utilising a multi-component fabric strip with a tighter weave that still remains flexible.
SMART Plus Compound- Gravel specific tread compound for traction and durability.

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SuperPoly polyester is a synthetic fibre stronger and softer than nylon and resistant to water. Challenge's SuperPoly casings are the more affordable handmade tyres.PRO series tyres are 220/260/300tpi depending on model. They are almost as supple as the Corespun Cotton but far softer than Nylon. The casing is impervious to water and so make the best value handmade tyres.



Tubeless Tubular - Construction type on certain models only. All the benefits of handmade tubulars but in a tyre that can be "plugged" in an emergency. The construction carefully fuses the seamless latex inner tube to the casing.



PPS Ganzo - A higher level of puncture protection utilising a multi-component fabric strip with a tighter weave that still remains flexible.



SuperPoly polyester is a synthetic fibre stronger and softer than nylon and resistant to water. Challenge's SuperPoly casings are the more affordable handmade tyres.PRO series tyres are 220/260/300tpi depending on model. They are almost as supple as the Corespun Cotton but far softer than Nylon. The casing is impervious to water and so make the best value handmade tyres.