TPI: 300.
Recommended Pressure:
25mm 80-110psi.
Puncture Protection: PPSGANZO.
Rubber Compound: Smart.
Construction: Handmade.
Series: PRO.
Size: 700.
Width: 25mm.
Casing: SuperPoly.
Bead: Folding.
Handmade construction - provide the ultimate in traction and ride quality.
SMART Plus Compound - Gravel specific tread compound for traction and durability.
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.
PPS Ganzo - A higher level of puncture protection utilising a multi-component fabric strip with a tighter weave that still remains flexible.