Venn 540 TCD UL ultralight aero gravel carbon rim

Venn 540 TCD UL: the aero gravel rim

The Venn 540 TCD UL takes the 32mm internal width of the 440 TCD UL to a 54mm deep profile, at 385g (±15g). It is built for gravel racing and fast mixed-surface riding, where you spend long stretches at speed and the extra depth pays back.

Profile

40mm at its widest, with a hooked bead. Best with gravel tires of 40 to 60mm. ERD 532.5mm.

Pre-moulded spoke holes

The spoke holes are moulded in rather than drilled after curing, so the fibres around each hole are never cut. They are angled to match DT Swiss 240 hub geometry for an even build and take external nipples only, with or without tool access holes. With the hole angles set in the mould, the rim is not for Boost hubs. Because the holes are moulded, this rim comes in 20 or 24 holes only. The same rim builds a front or a rear wheel, laced 1:1 (the same number of spokes on each side of the hub).

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 fibre is a blend of T700/T800 and T1100 grades.

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.

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. Both versions take 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.