Unlock 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.Product details- 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 3-bolt and 2-bolt SPD-style cleats (2-bolt mounting plate sold separately)Specifications- Upper Fiber Content: 56.9% PU / 10.5% Polyester / 32.2% Nylon / 0.4% Steel- Sole Fiber Content: 85% Nylon / 15% Fiberglass- Liner Fiber Content: 100% PolyesterClipless pedals, shoes, and cleats come in many varieties, some specific to one brand or another. If you have a favorite, you may already know what you're looking for, and what is compatible.Want some help choosing the right pedals and/or shoes? Interested in trying something new? Contact us to ensure your shoes are compatible with your pedals, and all of it's compatible with you.