RD KING (Smooth Road)

Meet the RD KING—a revolutionary quad road racing wheel that challenges convention and demands performance. Developed with Piper’s iconic Matter G13 urethane formula and engineered around the cutting-edge 6 COG Core, RD KING is not just a new wheel—it’s a new way of thinking about racing.

The innovative drop-center core design increases stiffness at the edges while allowing more urethane in the center, resulting in a wheel that delivers explosive rebound through the middle and precise control on the outer edges. This isn’t built for cruising—it’s built to win.

Just like F1 tires, RD KING prioritizes raw speed over comfort. Yes, you’ll feel more feedback from the road. Yes, there will be more friction and vibration. But that’s what racing wheels are meant to do—transfer every watt of your effort into forward motion.

Choose between two dialed-in hardness options—one for smooth surfaces, and one for rougher tracks—to match your terrain and race conditions.

• ✅ Matter G13 Urethane Formula
  Legendary inline race chemistry adapted for quad road performance—grippy, high-rebound, and race-proven.
• ✅ 6 COG Core (Drop Center Technology)
  Neal Piper’s most advanced core yet—designed to stiffen the wheel edges while maximizing central rebound. Faster than any small-core wheel.
• ✅ Speed Over Comfort
  Built for racing, not for softness. Like F1 tires, expect road feedback. Train on it, race on it, win because of it.
• ✅ Two Hardness Options
  • Smooth Road Formula – Ideal for clean, flat race courses
  • Rough Road Formula – Slightly softer to handle vibration and inconsistencies in coarse roads
• ✅ Made for the Future of Racing
  Lightweight, rigid, and fully optimized for elite-level outdoor road competition.