Venn 620A TCD UL 62mm asymmetric road disc brake carbon rim
September 22, 2026
Venn 780 TCD SL 78mm disc brake carbon rim
September 22, 2026
Venn 780 TCC SL 78mm rim brake carbon rim
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$479.00
Tubeless ready carbon rims. 78mm profile, rim brake.
See what riders and wheel builders made with Venn rims: Built with Venn
Spec sheet for wheel builders (PDF)
Venn made the first filament wound bicycle rims, in 2015. The engineering behind Venn rims: the development since, step by step, to today.
Venn 780 TCC SL: deep-section speed for rim-brake bikes
The Venn 780 TCC SL brings a 78mm deep carbon rim to rim-brake road, triathlon and time trial bikes, at 570g (±15g).
Profile
The 21mm internal and 28mm external width suits 25-28mm tires. Drilled 20 holes for the front wheel and 24 for the rear; ERD 484.2mm.
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.
Tubeless ready
The hooked bead takes tubeless tires as well as standard clinchers with inner tubes. Run tubeless with sealant and most punctures seal themselves before you notice them.
Braking
The 780 TCC SL has a carbon brake track. Use carbon-specific pads, such as our Venn Red pads, and bed them in before your first long descent.
Tool access holes or a sealed tire bed
Order the rim with tool access holes (fit tubeless tape) or without them for a true tubeless tire bed that needs no tape at all. The sealed version takes external nipples only.
Your finish, your decals
Choose gloss uncoated or matte uncoated. Both show the bare carbon, with no paint or clear coat added. Decals: silver Venn Hanko, the original black Venn logo, or none.
Rim profile
Venn's winding history
| Brand | Venn |
|---|---|
| Brake compatibility | Rim |
| Tire type | Tubeless/clincher |
| Size | 29", 700c |
| Width | 28mm at the widest point, 27.5mm at the uprights, 21mm internal |
| Depth | 78mm |
| Rim weight | Raw finished 570±15g |
| Rider weight limit | 110kg |
| Hole number | 20h front, 24h rear |
| ERD | 484.2mm |
| 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) |
| 3D brake track | 3D brake track for superior performance in wet weather |
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