Venn 400 C Carbon Gravel Wheelset

Articulated, multi-part tooling, layup preformed to net shape and controlled pressure and temperature give a fully compacted wall, virtually free of voids, and a surface that needs no clear coat.

Tooling and preforming like this are common in aerospace. In rim making they are not the norm.

The 400 C features our advanced hookless rim design, developed specifically for the demands of modern gravel riding. This design not only increases impact resistance by eliminating the traditional hook bead, but also creates a smoother tire-to-rim transition for improved aerodynamics. The wide, straight sidewalls provide excellent tire stability and better support for lower pressure tubeless setups.

Our carbon blade spokes provide two crucial benefits: significantly lower weight than steel spokes, and instant power transfer. Unlike steel spokes that elongate under force, carbon fiber's near-zero elongation means every watt of power goes directly into forward motion. This creates an incredibly responsive wheel that excels in both explosive accelerations and long-distance comfort.

- Rim Depth: 40mm - Internal Width: 25mm - External Width: 31mm - Spoke Count: 21/21 - Hub Type: Centerlock Disc - Bearings: Grade 3 Ceramic - Freehub: Shimano HG - Hub System: 52-tooth ratchet with ceramic bearings - Recommended Tire Width: 35-50mm

Our hookless rim design increases impact resistance by eliminating the traditional hook bead, crucial for rough terrain. It also creates a smoother tire-to-rim transition for improved aerodynamics and provides better support for lower pressure tubeless setups typical in gravel riding.

The 400 C is optimized for gravel tires from 35mm to 50mm wide. The 25mm internal width provides excellent tire support and stability across this range, while maintaining optimal tire profile for both performance and comfort. Use tubeless tires that their maker approves for hookless rims, and stay within the tire maker's hookless pressure limit.

Yes, the 400 C is ideal for bikepacking adventures. Its rims are molded for a fully compacted, virtually void-free wall, and the stiff carbon blade spokes handle the extra load while maintaining superior ride quality.

While the 400 C is optimized for gravel tires, it can accommodate road tires 32mm and wider. However, for primarily road use, we recommend our 360 C SL model which is specifically designed for road tire profiles.

The 400 C wheelset weighs 1320g (±30g), light for a tubeless, hookless gravel wheel that's built to absorb impacts and carry bikepacking loads.

It has a Shimano HG freehub body: this 400 C is a single built wheelset, so the freehub is as built.

Yes. The hookless rims are tubeless-ready and ship with tubeless tape and valves included, ideal for the lower pressures and pinch-flat protection gravel demands. The set also includes four spare carbon spokes (two front, two rear).

Yes. Carbon blade spokes combine low weight with high stiffness and near-zero elongation, and the lacing handles bikepacking loads. Spare spokes are included, and individual spokes can be replaced through Venn.