The CZR i23 gravel wheels are designed to minimize weight while combining stiffness and flexibility to maximize power transfer and enhance comfort. The CZR i23 rims feature a 24mm section depth to maximize power transfer, reduce weight, improve vertical compliance, and reduce rider fatigue, while the hooked bead also improves tire retention for road or gravel tires under high pressure.

Reinforced spoke beds improve the overall strength and durability of the wheels while minimizing weight in areas where less strength and, therefore, less material are needed. CZR i23 rims feature a 3mm asymmetric spoke offset and a 24mm section depth to improve radial stiffness and maximize power transfer without the crosswind impact of other higher-profile wheels.

A durable nylon strip that sits between the rim and the tubeless strip prevents the tubeless strip from pressing into the spoke holes and ensures a smooth connection between the tire and rim. The smooth surface facilitates tire installation by preventing air from escaping around the bead during each inflation stroke. The Solid Strip also protects the airtight system from punctures in the event of a broken spoke.

The 24-spoke CZR i23 gravel wheels feature a 2-cross lacing pattern to increase radial stiffness and reduce weight. The 28-spoke CZR i23 wheels feature a 3-cross lacing pattern to increase durability while providing high radial stiffness thanks to the extra spokes.

The world's best carbon fiber rims deserved to be paired with high-quality hubs that further enhance the performance of a lightweight and reliable carbon fiber wheelset. Frequency hubs feature a low-resistance 6-pawl design that alternates between two sets of 3-pawl groups to provide responsive 5-degree hub engagement. Paired with CZR i23 rims, Frequency hubs feature lightweight pawl springs that minimize drag, thereby improving efficiency.

Pillar racing spokes are cold-forged into an aerodynamic wing shape that reduces drag at the tip of each spoke. As a result, wing spokes improve overall performance while maintaining the weight of traditional flat spokes.

All CZR i23 wheels are equipped with proven Sapim aluminum alloy nipples to further reduce the overall wheel weight while raising the strength requirements for gravel wheels.

Ride with confidence. If you break one of our CZR carbon rims while riding, we'll send you one free. No exceptions. Didn't you see that sharp rock until you were airborne? Are you just riding like a freight train without brakes? If you're the original owner and were riding your bike when it happened, we'll replace it free of charge. Your friends might judge your poor rim choice, but we won't. We also offer the option of rebuilding the wheel and sending it back to you with fresh spokes and nipples.