700c, 27-Inch & 650c

The Formula Pro RBCC has even more grip performance while maintaining the tire characteristics that racers value it for. From dry to wet, Formula Pro RBCC promises excellent riding performance no matter the weather conditions. - The Formula Pro RBCC uses IRC's grippiest road compound, and adds RBCC for additional traction in both wet and dry conditions - Gummy road compound for great cornering performance - Wide cross-section for lower rolling resistance - Natural rubber in-air-seal prevents leakage

The Formula Pro Tubeless X-Guard is the strongest tire in the Formula Pro series with wider tread and extra puncture-proof performance. The all new X-Guard Belt ++ covers the tire sidewall from bead to bead with a 40x40tpi anti-puncture protection barrier. - WX-Guard double-layer bead-to-bead puncture protection - The wide cross-sectional shape provides improved rolling resistance

A unique semi-slick diamond design pattern offers a lower rolling resistance and comfort ride on the street. This tire is also an excellent choice for the hard pack off-road trails and XCO races.