Venn 500 TCD UL ultralight carbon rim for road or gravel use

Venn 500 TCD UL: The 345g Aero All-Rounder

Weight: 345g (+/- 15g) | Profile: 50mm | Compatibility: Universal

The Venn 500 TCD UL redefines what is possible for an aerodynamic road rim. By combining a deep 50mm profile with a featherweight 345g (+/- 15g) chassis, we have created a rim that slices through the wind on the flats yet accelerates and climbs like a specialized mountain wheel.

This is the rim for riders who refuse to compromise between speed, weight, and build versatility.

The Filament Winding Advantage

Achieving a sub-350g weight on a 50mm rim is impossible with standard manual layups without sacrificing stiffness. We achieve it through our proprietary automated 1k filament winding process.

By using carbon tape containing exactly 1,000 fibers (T700/T800 and T1100 grade), we can place material with microscopic precision. This automated process ensures higher compaction and zero voids. The result is a rim structure that is naturally perfectly balanced and structurally superior to hand-laid carbon, requiring no paint or filler to hide imperfections.

Aero Profile & Handling

The 50mm depth offers significant aerodynamic drag reduction, while the 32mm external width creates a stable, convex airfoil shape that remains predictable in crosswinds.

With a 25mm internal width, the rim is optimized for modern 28mm+ road tires. This wider bed increases tire volume for lower rolling resistance and better vibration damping, while ensuring the tire sidewall is well supported for better handling performance.

Build freedom

Whether you are building a dedicated climbing wheelset, a minimalist aero setup, or gravel wheelset, the Venn 500 TCD UL delivers the lightest possible rim platform for the job without sacrificing any stiffness.

Tubeless Ready

The rims are compatible with both traditional clincher and modern tubeless tires. When used with a sealant, a tubeless setup can virtually eliminate the inconvenience of flat tires, whether you’re racing or just out for a ride.