AR40 DB

The ENVE AR40 DB is built for riders who want one wheelset for fast road miles, rough backroads and gravel exploration. As part of the Foundation lineup, it pairs carbon rims with a 40 mm depth at both ends and a generous 25 mm internal width. This combination balances an aerodynamic design with the versatility needed when routes change from smooth pavement to unpaved surfaces.

ENVE developed and tested the AR40 rim profile in a wind tunnel, evaluating wheels mounted in a bicycle frame at different speeds rather than in isolation. The approach focuses on useful aerodynamic performance in real riding conditions. ENVE identifies a 27 mm tire as the aerodynamic optimization reference, while tire selection must always follow the brand's approved or recommended compatibility guidance.

The rims use a hookless design with ENVE's Wide Hookless Bead, intended to disperse impact energy and reduce the likelihood of pinch-related tire damage. Molded spoke holes help maintain continuous carbon fibers around the openings, supporting rim strength without unnecessary material. The AR40 is for tubeless tires only, and ENVE lists a recommended tire-width range of 27-50 mm; riders should confirm the exact tire model and permitted pressure before installation.

ENVE INNERDRIVE Foundation hubs are designed around reliable engagement and straightforward service. Each wheel is built with 24 Sapim CX-Ray J-Bend spokes and Alpina Nylock brass nipples. The disc brake interface is Centerlock, and thru-axle spacing measures 12x100 mm up front and 12x142 mm at the rear.

ENVE quotes an average complete wheelset weight of 1515 g, with a tolerance of plus or minus 3%, including tubeless tape and valves in the HG-freehub configuration. The result is a practical all-road wheelset for cyclists looking for an aerodynamic carbon profile, flexible tire choices and a consistent setup for training, long-distance rides and gravel outings.