Challenge Gravel Grinder 700c Tire.
- Designed for hardpack dirt and gravel
- Pro: supple, 260 tpi SuperPoly casing with 2 layers of puncture protection underneath the tread, optimized for 45-130 psi
- Race: 120 tpi nylon casing with a layer of puncture-protection underneath the tread, optimized for 45-80 psi
- TLR: Tubeless Ready 120tpi nylon superlight casing
This product is expected to arrive on Thursday, October 1 2020