ENVE Foundation AR40 Wheels

The ENVE Foundation AR40 wheels represent premium ENVE performance, aerodynamics, and reliability in a versatile package engineered for road racing and gravel adventures. Built to the exact standards that define all ENVE products, the AR40 combines sophisticated aerodynamic optimization with gravel-rated durability, making it the perfect upgrade for modern road bikes, all-road machines, or gravel racing setups.

The AR40 features an aerodynamically optimized 40mm rim depth front and rear paired with a 25mm internal width, designed to deliver ultimate versatility for riders seeking performance across varied terrain. Drawing from ENVE's extensive SES rim design knowledge, the AR40 is aerodynamically tuned specifically for 29mm–30mm tires, delivering drag reduction that punches well above its depth and price point, while accommodating tire sizes from 27mm up to 50mm for true all-road capability. Wind tunnel testing at the Mercedes-Benz Formula One facility confirms best-in-class real-world aero performance, with in-frame testing conducted at multiple speeds to ensure meaningful gains for riders of all abilities.

While designed primarily for on-road performance, the AR40 has been rigorously tested and qualified to ENVE's demanding gravel standards, ensuring safety and speed for gravel riding and racing applications. This wide range of capabilities makes the wheelset exceptionally versatile without compromising the aerodynamic efficiency or handling confidence that defines premium road racing wheels.

The rim construction utilizes ENVE's patented Molded Spoke Hole technology, which routes continuous carbon fibers around spoke holes without cutting them, dramatically increasing strength while reducing weight. This advanced manufacturing technique supports higher spoke tensions, reduces pull-through risk, and minimizes long-term truing maintenance. At 425g per rim and approximately 1,500g for the complete wheelset (±3%), the AR40 delivers impressive lightweight performance without sacrificing durability.

The AR40 also features a Wide Hookless Bead design, a patent-pending innovation that dissipates impact energy and reduces pinch-flat risk for both tubed and tubeless tires. The hookless, straight-sidewall profile ensures precise bead seat tolerances for safer, more reliable tubeless performance, reinforcing ENVE's commitment to tubeless systems as the modern performance standard.

Foundation-grade InnerDrive hubs complete the package with an in-house designed oversized 42mm ratchet drive system positioned inboard over the bearings to reduce axle and bearing stress. High-performance steel bearings share the same seal strategy as ENVE’s Premium hubs, delivering long service life, low drag, automatic preload adjustment, and simplified maintenance.

Key Features

• Aerodynamics - Wind tunnel-tested 40mm depth optimized for 29–30mm tires delivers drag reduction above its price point
• Versatility - Gravel-rated durability tested to ENVE standards for confident road and off-road performance
• Construction - Patented Molded Spoke Hole technology increases strength, reduces weight, and minimizes maintenance