Panaracer GravelKing X1 R Tire - Tubeless, Folding

The Panaracer GravelKing X1 R is a race-tuned gravel tire designed for riders who prioritize speed, efficiency, and precise handling. As the lightest and fastest version in the GravelKing X1 lineup, the “R” (Race) model uses a more supple casing and optimized tread to minimize rolling resistance while maintaining enough grip for fast gravel and mixed terrain riding.

The tread pattern features a fast-rolling centerline with low-profile knobs, paired with more defined shoulder lugs for cornering control. This design keeps rolling resistance low on pavement and hardpack while still providing predictable traction when leaning into turns. The X1 R is best suited for race conditions, dry gravel, and high-speed mixed surfaces rather than deep mud or loose terrain.

A key feature is Panaracer’s TuffTex R casing, which provides bead-to-bead protection while remaining noticeably more flexible and lightweight than standard versions. This improves ride quality, reduces energy loss, and enhances overall efficiency. The redesigned BeadLock system improves compatibility with both hookless and traditional rims, helping ensure a secure tubeless setup.

Key Features / Technical Details

• Race-focused gravel tire designed for maximum speed and efficiency
• Tubeless-ready (TLR), compatible with hookless and clincher rims
• Fast-rolling center tread with cornering shoulder knobs
• TuffTex R casing for lightweight protection and improved suppleness
• BeadLock design for improved fit and air retention
• Folding (aramid) bead construction

Technical Specifications (varies by size)

• Weight: approximately ~380–480g (lighter than standard X1)
• Max pressure: up to ~60 psi (TLR)
• Casing: lightweight, high-suppleness race construction

Rolling Performance

• Among the lowest rolling resistance in the GravelKing lineup
• Faster than standard X1 and Plus versions
• Optimized for hardpack, pavement, and fast gravel
• Less protection than Plus models, prioritizing speed over durability

The GravelKing X1 R is ideal for riders who want a fast, race-ready gravel tire with excellent efficiency and ride feel, especially for gravel racing, fast group rides, and mixed-surface events where speed matters most.