Anti-aging side wall compound prevents cracking at low pressure

The tread offers sharp angles and edges to hook onto any surface

Micro Articulating Instep

FIBERGLASS: Triax™

Includes an ingenious tube spool to compactly store the tube of your choice without the risk of damage from rubbing against the valve stem

Bontrager Circuit Men's Shoe long Anti-aging side wall compound preventsUnlock your potential and go farther with the Circuit road shoe. Equal parts stiff and comfortable, compatible with both 2 bolt SPD style and 3 bolt cleats, this shoe is ready for anything. Key features inForm Race last offers a slightly roomier, high performance fit Nylon composite Bronze Series sole PowerTruss sole design improves stiffness without adding significant weight Boa L6 dial for precise adjustment Stiffness index 7 of 14 Compatible with 2