Named after Portland's Cross Crusade Cyclocross series, Clement's Crusade PDX is an all-around mud-wrestler, the tire you want on your ride when things get sloppy. This tire shines in the mud and chaos of 'cross with an aggressive tread and tall shoulder knobs so your bike stays controlled in the turns. Out of the muck, aligned center knobs give speed on pavement and hard pack. Handling is enhanced by the high-volume, 120tpi casing, supremely supple sidewalls, and lightweight folding bead.

Get after it with Maxxis' Ardent holding the line. This versatile tire features large block-style side knobs with numerous edges for high-speed corners along with a ramped center tread for easy rolling. Plus, the high-volume casing delivers a plush ride. The EXO version adds an extremely cut and abrasion-resistant material to the sidewalls for extra peace of mind. - Folding bead - Weight: 700g (29 x 2.25), 750g (EXO 29 x 2.25), 805g (EXO 29 x 2.40)

Vittoria's Zaffiro boasts a tough nylon casing, Vittoria's Twin Tread technology for excellent cornering and rolling resistance, and also Vittoria's Puncture Resistant Belting for top-notch flat protection.

Vittoria's Zaffiro boasts a tough nylon casing, Vittoria's Twin Tread technology for excellent cornering and rolling resistance, a high-mileage rubber compound, and Vittoria's Puncture Resistant Belting for top-notch flat protection. - Wire bead - 26 tpi casing

- PDX is the airport code for Portland, Oregon, where frequent rain means muddy Cross courses - Aggressive, wide-spaced knobs for mud clearing, aligned center knobs roll fast on hard pack and pavement, softer side knobs offer superior cornering - 120tpi - Weight: 350 grams