The World's Fastest Tire combines the aerodynamics and low rolling resistance of the R4 tire with a new streamlined profile saving you 9+ seconds over the next fastest tire in a 10k time trial.
- The new Worlds Fastest Tire. More than 37 seconds faster over a 40K time trial than our closest competitor
- For higher performance, racing purposes only. Not intended for everyday use or training
- 220 tpi casing provides ultra low rolling resistance and excellent ride quality
- CFD-aided tread profile for better aerodynamics on contemporary rim widths
- Aero wings help slice through the wind
- Integrated sub-tread puncture protection (Hard-Case Lite)