Rice Bran Ceramic is, as its moniker suggests, derived from simple, ordinary, everyday rice. What we do to it, however is anything but. Rice bran (or the outer husk of an individual rice grain) is ground to a fine powder, mixed with a thermosetting resin, and super-heated. When cooled, the block is pulverized to create millions of porous, ball-shaped structures with semi-rigid fingers extending in all directions. These Rice Bran Ceramic "balls" are then kneaded with the rubber and molded into tires. The spikes which extend from the RBC reach out and grab the uneven road surface for increased traction while the pores will wick water from the road surface to create a larger tire-to-road contact patch.

RBCC compound provides incredible wet-weather traction.

The RBCC tread compound shows a 4 percent reduction in rolling resistance with a 7 percent boost in road grip when compared to our competitors’ tires.

The 2017 Formula Pro Tubeless Series features an allnew rubber mixing technology. Based on the feedback from our professional riders, we enhanced wet grip capability, reduced rolling resistance by 10%, and improved handling through the application of our new generation RBCC material formula


If you are looking for durable tires, look no further than our X-Guard line-up. X-Guard ++ provides bead-to-bead sidewall protection combined with a 40 x 40 TPI anti-puncture protection barrier. X-Guard tires have as much as 40 percent more cut resistance when compared to conventional tires.

Pinch-Flat Resistance System

IRC offers this Pinchflat Resistant System for extreme mountain bike riders. This extra defense against pinch flat troubles is achieved through the application of a rubber cushion inside the tire casing above the bead.

Internal Air Seal

To eliminate casing leaks and offer additional protection against air loss due to punctures, we apply a butyl coating to the inner walls of all our tubeless tires. This internal application of butyl also means you can repair a cut tire with a traditional tire patch kit.

Natural Rubber Internal Air Seal

Many riders prefer to use latex inner tubes in road racing since latex's excellent elasticity provides riders with the lightest possible riding feel. To bring this advantage to a tubeless tire, IRC has developed a new high-elasticity tire liner based on reinforced natural rubber that offers lower energy loss.


Aero++ tires have “aero” fins along the beads that create a smooth transition from rim to tire, reducing air drag. This unique feature reduces air drag by as much as 4 percent when compared to conventional tires.

Micro Gauge Inner (MGI) Seal

All IRC tubeless-ready tires have a thin, air-seal layer on the inner wall to better seal in air. This unique feature means that IRC tires can be inflated without the aid of a compressor under most circumstances.

Hybrid Tread Compound

The inner and outer tread blocks are designed to perform different tasks. To that end, we developed specific rubber compounds allowing these blocks to perform even better. One is a cornering-specific compound used for the outer blacks. The second is a harder compound used for the center tread. The result is a super-fast tire custom tuned for stable cornering and increased traction.


Active Compound Control

ACC is a proprietary technology developed from years of collected ride data. The result is condition-specific tread compounds for the best performing tires.

High-Pressure Casing


All 4-ply






Tubeless Ready


Wide Tread