CGR i28
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Free shipping for orders over $100, excluding deliveries to Hawaii and Alaska.
Orders are typically processed within 1-2 business days and shipped via UPS standard ground service from our warehouse in San Rafael, California.
30 day return policy
Decide a product wasn't for you? Return any unused product for up to 30 days with no questions asked.
Warranty policy
We guarantee our products for at least two years.
Product description
WTB CGR i28 Carbon Gravel Wheels are designed to deliver speed, comfort, and durability in equal measure. Featuring deeper carbon rims with a generous internal width and WTB’s advanced Frequency 7X hubs, CGR i28 wheels are engineered to maximize the performance of modern wide gravel tires while providing the confidence to ride fast across everything from smooth gravel roads to rough, technical terrain.
Choose options
Frequency 7X Hubs
DLC (Diamond-Like Carbon) Coating
Splined Inner Ratchet Ring
Large Enduro Bearings
40mm deep, 28mm wide
TCS Tubeless Ready
700
| Product | Rim Size | Weight | Hub Dimension | Rotor Mount | Driver Body | Spoke Count | Inner Rim Width | Part number |
CGR i28 x 700c Front Wheel, Frequency 7X 12x100mm, 24h, CenterLock | 700 x i28 | 635g | 12 x 100 | CenterLock | N/A | 24h | 28mm | W045-0344 |
CGR i28 x 700c Rear Wheel, Frequency 7X 142x12mm, 24h, CenterLock, Sram XDr Driver w/ 1.8mm Spacer | 700 x i28 | 729g | 12 x 142 | CenterLock | Sram XDr | 24h | 28mm | W045-0345 |
| CGR i28 x 700c Rear Wheel, Frequency 7X 142x12mm, 24h, CenterLock, Shimano MicroSpline 12spd Freehub | 700 x i28 | 729g | 12 x 142 | CenterLock | Shimano MicroSpline | 24h | 28mm | W045-0347 |
| CGR i28 x 700c Rear Wheel, Frequency 7X 142x12mm, 24h, CenterLock, Shimano HG 11spd Freehub w/ 1.8mm Spacer | 700 x i28 | 740g | 12 x 142 | CenterLock | Shimano HG | 24h | 28mm | W045-0346 |
*WTB's tire pressure recommendations have changed over time due to further developments in technology. Riders may always reference the markings on their tires for allowed pressures ranges, but may also consult wtb.com for the most up-to-date tire pressure recommendations from WTB. We calculate pressure recommendations based on an average rider weight of 160-180 lbs and suggest increasing our minimum recommended pressure on WTB.com by 2-3psi for every additional 10 lbs of rider weight. Never exceed the maximum tire pressure marked on a tire.
Frequently Asked Questions
The CGR i28’s 28 mm internal rim width is optimized for modern wide gravel tires between 50–54 mm, providing an ideal balance of tire stability, traction, comfort, and rolling efficiency. They pair particularly well with WTB’s Byway RS 50, Course 52, and Macro 54.
Yes. CGR i28 carbon rims feature WTB’s patented TCS technology for exceptional air retention and reliable tubeless performance, allowing riders to take advantage of lower tire pressures for improved traction, comfort, and control.
Designed for modern gravel riding, CGR i28 wheels balance aerodynamic efficiency, stability, comfort, and durability. The 40 mm-deep carbon rims and wide internal profile make them suitable for everything from fast gravel racing to long-distance adventures and rough, technical terrain.
Frequency 7X hubs feature a patent-pending hub and ratchet interface, DLC-coated ratchets for increased hardness and reduced friction, and a splined inner ratchet ring designed to withstand over twice the torque of traditional threaded designs. Larger Enduro bearings and fully sealed internals further enhance durability, reliability, and service intervals.
WTB’s Ride With Confidence Guarantee covers its carbon rims against breakage while riding. If you're the original owner and break a WTB carbon rim while riding, WTB will provide a free replacement rim, giving you added confidence to push your limits.
Frequency 7X Hubs
At the heart of CGR wheels are WTB’s new race-tested and World Cup-proven Frequency 7X hubs. These state-of-the-art hubs feature a refined ratchet-ring drive system that sets a new standard in performance and reliability.
Refined Ratchet-Ring Drive
All WTB ratchets use a DLC (Diamond-Like Carbon coating) to deliver greater hardness and significantly lower friction than traditional hard chrome-plated drive systems. To build on this durability, the inner (hub side) ratchet ring keys into place with splines rather than threads, allowing the hubs to withstand over twice the torque of traditional designs without requiring specialist tools for servicing.
Durable Enduro Bearings
Frequency 7X hubs use larger than typical Enduro bearings throughout, including durable freehub bearings that increase the load rating by up to 38% compared with competing rear hubs. This creates a stiffer axle assembly, improving reliability and reducing maintenance intervals. The hubs are fully sealed and rigorously tested to keep dirt and moisture out, making the Frequency 7X hubs ready for long days and demanding conditions.
Rims that Deliver
CGR carbon rims are purpose-built for modern gravel, with a 40mm depth and 28mm internal width optimized for wide gravel tires. An asymmetric profile helps balance spoke tension, while 4D spoke drillings and internally reinforced spoke beds optimize load distribution and overall wheel strength.
Ride With Confidence
From burly enduro to lightweight gravel, WTB backs its carbon rims with our Ride With Confidence Guarantee. If you break a WTB carbon rim while riding, as long as you’re the original owner, we’ll send you a replacement for free. No exceptions.
Tried and True
“I love how smooth and fast rolling the new CGR i28 aero wheels are on changing and challenging terrain. The 40mm depth gives me confidence in side-winds, extra watts in a tailwind and an feel so fast in the descents” - Ruby Ryan, professional cyclist