Piedmont Race Alloy, XCX Alloy, and XCX Race Carbon Gravel wheels use rims with a 24mm inside width and hookless bead sidewalls.
Piedmont Race Carbon Gravel wheels use rims with a 26mm inside width and hookless bead sidewalls.
Compatible Tire Width: Rims with a 24mm inside width are compatible with 32-57mm tire widths. 38-47mm is recommended for optimal tire profile.
Rims with a 26mm inside width are compatible with 35-58mm tire widths. 45-55mm is recommended for optimal tire profile.
Pressure: Maximum pressure rating for XCX and Piedmont wheels is 60 PSI. As such, XCX and Piedmont wheels are NOT compatible with high pressure road tires or any tire requiring above a 60 PSI operating pressure.
Hooked vs Hookless tire compatibility: We are not currently aware of any gravel tires on the market which require a hooked rim for compatibility. However, if you have concerns please reach out to the manufacture of the tire in question if you have doubts or questions about compatibility with hookless rims.