Challenge Gravel Grinder Pro

The Gravel Grinder Pro features a fast-rolling center section designed specifically for efficiency on hard surfaces. While it won't be as fast as a dedicated slick road tire, it minimizes drag significantly on asphalt, making it a capable choice for mixed-terrain rides that include long pavement sections.

Yes. The aggressive, large side knobs are specifically engineered to bite into loose surfaces when you lean the bike into corners. This design provides the stability and confidence needed for technical gravel riding.

The maximum pressure is 45 PSI. However, for most gravel riding, you will likely find better traction and comfort by running them at a lower pressure, depending on your total system weight and the specific terrain.

This is a 700C x 40C tire, which is quite wide for a standard road bike. You should check your frame and fork clearance to ensure you have enough room for a 40mm tire, as many road frames are limited to 28mm or 32mm widths.

The tacky rubber compound is designed for consistent grip across varying conditions. While it excels on dry fire roads, the tread pattern and compound provide reliable traction even when the surface gets a bit damp or loose.