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 have been performing at the highest level throughout 2026 at the hands of Cannondale Factory Racing and feature a patent-pending hub/ratchet interface that sets a new standard in performance and reliability.
DLC Ratchet Rings
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.
Splined Inner Ring
To increase 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.
This robust design boasts a max torque capacity of 790nm, and can withstand 2.4x the load of threaded inner rings.
Large & 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, combining a 40mm-deep profile with a strategically tuned 28mm internal width. This provides the ideal platform for 50-54mm gravel tires, balancing tire stability with the desired profile for traction, suppleness, and rolling efficiency.
better together
WTB’s CGR i28 is a gravel wheelset designed to complement the growing trend toward wider tires and rims, giving riders a stable and durable foundation for everything from fast gravel racing to long-distance adventures. Pair CGR i28 with WTB’s new aerodynamically optimized Byway RS 50, Course 52, Macro 54, or slightly narrower 45mm tires to unlock a new level of gravel performance.
Shop
Shop the look
Explore The Features
1 All-new Frequency 7x hubs
Race-tested and World Cup-proven. These state-of-the-art hubs are built to perform at the highest level, at the lowest possible weight.
2 Large Enduro Bearings Throughout
Frequency 7X hubs use larger than typical Enduro bearings in both the hub shell and freehub body to increase overall load capacity and create a stiffer axle assembly, improving reliability and reducing maintenance intervals.
3 Refined Ratchet Drive System
Featuring a patent-pending hub/ratchet interface that sets a new standard in performance and reliability.
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.
4 rims for modern gravel
CGR carbon rims are purpose-built for modern gravel, combining a 40mm-deep profile with a strategically tuned 28mm internal width. This provides the ideal platform for 50-54mm gravel tires, balancing tire stability with the desired profile for traction, suppleness, and rolling efficiency.
All-new Frequency 7x hubs
Race-tested and World Cup-proven. These state-of-the-art hubs are built to perform at the highest level, at the lowest possible weight.
Large Enduro Bearings Throughout
Frequency 7X hubs use larger than typical Enduro bearings in both the hub shell and freehub body to increase overall load capacity and create a stiffer axle assembly, improving reliability and reducing maintenance intervals.
Refined Ratchet Drive System
Featuring a patent-pending hub/ratchet interface that sets a new standard in performance and reliability.
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.
rims for modern gravel
CGR carbon rims are purpose-built for modern gravel, combining a 40mm-deep profile with a strategically tuned 28mm internal width. This provides the ideal platform for 50-54mm gravel tires, balancing tire stability with the desired profile for traction, suppleness, and rolling efficiency.