SILCA's tire pressure research started on pavement, chasing the fastest setup for smooth road racing, and the Protocol RCR tire is where that original question finally gets its own tread. It rolls fast on modern endurance and all-road builds while holding confidence through mixed-surface sections, and tubeless construction with modern wide internal rim widths keeps pressure low without adding flat risk. What Our Gearhead(R) Experts Are Saying:"I run the RCR on all-road days because it holds pavement speed without going twitchy the moment the surface turns to chip seal or a rougher shoulder."