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Venn 400 THL SL ultralight hookless gravel rim
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$349.00
Hookless gravel rims. 40mm profile, disc brake.
See what riders and wheel builders made with Venn rims: Built with Venn
Spec sheet for wheel builders (PDF)
Prefer it built? This rim is also sold as complete wheels: Venn 400C carbon gravel wheels, built and trued to order on vennwheels.com.
Venn made the first filament wound bicycle rims, in 2015. The engineering behind Venn rims: the development since, step by step, to today.
Gravel optimized performance
The Venn 400 THL SL gravel rims combine aerodynamic efficiency with the durability demands of off-road riding. The modern 25mm internal width is optimized for gravel tires from 35mm to 50mm, while the 40mm profile provides meaningful aerodynamic advantage without compromising handling in challenging conditions.
Moulded for a flawless wall
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.
The rims are compatible with tubeless tires designed for hookless rims. Optimal widths are between 35mm and 50mm
Rim profile
Venn's winding history
| Brand | Venn |
|---|---|
| Brake compatibility | Disc |
| Tire type | Hookless |
| Size | 29", 700c |
| Width | 31mm at the widest point, 30mm at the uprights, 25mm internal |
| Depth | 40mm |
| Rim weight | Raw finished 400±15g |
| Rider weight limit | 110kg |
| Hole number | 20 holes, 24 holes, 28 holes |
| ERD | 560.5mm |
| Finish option | Gloss uncoated, Matte uncoated, 25k pattern (+30 g per rim) |
| Decals | Silver Venn Hanko, Black Venn logo (original), None (plain carbon) |
| Tool access holes | Yes, needs tubeless tape, No, true tubeless (not compatible with internal nipples) |
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