ProX Ultra Light Full Disc Carbon Wheel 27mm Wide Disc Brake Aero Rear Disc Wheel For TT Bikes

ProX Ultra Light 700C Full Disc Rear Wheel Non-Paint Carbon Finish

Compared to regular spoke wheels, full disc wheels are relatively heavier, but they are outstanding in aerodynamics and stiffness which are critical for TT bikes and Track bikes. When typical full disc rear wheels in the market still weighed around 1200–1300g, ProX took the lead by launching an ultra light full disc rear wheel weighing only about 970g! A new carbon disc wheel engineered for Time Trial, Triathlon, and Track bikes racing, with UD naked carbon finish, 36T ratchet freehub, ceramic bearings, and optimized wide-rim aerodynamics.

Aerospace-grade PMI-Filled Wall Construction
Our disc wheel features aerospace-grade PMI only in the rim wall, striking the perfect balance:
Lighter than regular full-PMI filled wheels – reduces excess weight without sacrificing core rigidity.
Stronger and stiffer than hollow disc wheels – eliminates unwanted flex and improves impact resistance.
Reduces ride noise compared to hollow designs, while maintaining an ultra-light 970g weight.
This targeted PMI reinforcement ensures maximum structural integrity at the lowest possible weight, ideal for high-performance racing.

ProX Carbon had taken it to the next new level in terms of rim finish. Non-paint (paintless) finish become one of the choices. They feature the latest manufacturing technology and are the completed product when come out of rim molds directly, eliminating the need for coating or painting. Such carbon rims are of better scratch resistant, with natural carbon weave visible. Non-paint looks more premium to match the carbon bike than common black matte finish. No paint, premium carbon look, pure performance.

There are two carbon weave type optional (see below pictures): Cloud UD Carbon Non-Paint, and Turbo UD Carbon Non-Paint.

Cloud UD Carbon Non-Paint	Turbo UD Carbon Non-Paint

27mm outer width is a perfect choice to follow latest popular tendency in the carbon bike market. 21mm inner 27mm outer width, optimized aerodynamics for 700x28C tires.

The valve hole is on the non-drive side and comes with a sticker. It keeps the valve clean and of better looking. The most important benefit is to reduce wind resistance and noise.

Good quality OEM PX hub is made by well selected hub manufacturer in Taiwan. It is designed with ratchet 36T freehub system which improves power transfer efficiency, combining with ceramic bearings, the rolling resistance is minimized. Such hub helps you to shorten acceleration time and save energy. Ceramic bearings are smoother, rounder and with more uniform size. In that case, the friction is reduced and that can contribute more energy to the wheels. Ceramic bearing is also harder than steel bearings (up to 30%), which improves durability, and they also don’t rust for less maintenance. All of them are center lock disc brake, Shimano 11/12s or SRAM 12s XDR freehub available.

✅Ideal For:

• Triathletes looking to maintain high speed with stable airflow
• Time Trial riders seeking maximum aerodynamic advantage
  
• Track cyclists who require stiffness and consistent power transfer
  
• Performance-focused racers where every watt and every gram matters
• Riders competing on flat or fast courses with minimal technical climbing

❌Not Recommended For:

• Daily commuting or casual riding
• Very windy conditions for inexperienced riders
  
• Riders who prioritize comfort over performance
  
• Rough roads or gravel bike