Our exclusive C3 BMX compound has proven that specialty compounds are no longer just for mountain biking. C3 has a 65 durometer rating that is just slightly softer than traditional BMX rubber. C3 has the same slow rebound dampened feel as our other compounds but has added qualities which maintain low rolling resistance, a critical quality for BMX. In addition, the extra cornering and first straight-away traction provided by C3 has allowed us to make tread patterns with lower knob profiles that roll faster but still deliver staggering traction previously not thought possible in performance BMX tires.