WTB CZR i30 700c/29in TCS 2.0 28 Hole Rim Black

CZR i30 are premier mountain rims designed to endure whatever lies in their path.

Lateral stiffness that only carbon can provide is combined with fine-tuned radial compliance to make sure CZR i30 holds the line through chunky tech without beating you up in the process.

Reinforced spoke holes, Solid Strip integration, an asymmetrical design and two years of development make CZR i30 the most dependable carbon rims on the market. Ride with Confidence Guarantee

Asymmetrical Design

Asymmetrically offset spoke holes help equalize the spoke tension of a wheel build, while the symmetrical outer profile distributes impact forces throughout the entire rim rather than absorbing them by one side more than the other. CZR i30 rims feature asymmetrical spoke offset of 5mm.

Reinforced Spoke Beds

Additional carbon at each spoke bed improves overall rim strength and durability while also minimizing weight in areas where less strength, and therefore material, is needed.

4D Angled Spoke Holes

Molding spoke holes at an angle eliminates binding and lateral loading of the spoke and nipple interface. It also allows spoke tension to be more evenly dispersed on the nipple rather than loading one side more than the other. Allowing the spoke to depart the rim at a natural angle increases the longterm durability of both the spoke and nipple.

TCS Solid Strip

Durable nylon strip that lies between the rim and tubeless tape to prevent tubeless tape from pushing into the spoke holes and ensures a smooth interface between the tire and rim. The smooth surface makes it easier to mount a tire by preventing air from escaping around the bead at each indent during inflation. Solid Strip also protects the airtight system from puncture in the case of a broken spoke.

30mm Inner Width

Numbers tend to be a hard thing to agree upon in the world of mountain biking, but 30mm has become widely accepted as the perfect inner rim width for trail and enduro riding. Pairing this inner rim width with a 2.4-2.6" tire increases tire volume and sidewall support compared to traditionally narrower rims. The increased volume also allows riders to run lower tire pressures which translates to improved traction and comfort. Most modern mountain tires have beeb designed to provide the optimal profile on a 30mm rim.