Why Do Aero Rim Riders Choose EVO Presta Valve Extensions?

The EVO Presta Valve Extensions solve a problem every deep-rim rider has hit: Presta valves too short to reach through a deep aero section, making inflation slow and frustrating mid-ride. The CNC-machined 7075 alloy construction gives these extensions the rigidity and dimensional accuracy needed to thread on cleanly and stay put under pressure. At 70mm, they add enough stem length to work comfortably with most mid-to-deep aero rims, and the sealed base design prevents high-pressure air loss at the connection point — a genuine engineering detail, not just a spec-sheet line item.

Sold as a pair in black, these extensions pair cleanly with aero dish rims on road and triathlon setups where a short valve would otherwise be unworkable. The precision alloy threading engages the existing valve core without slop or cross-threading, and the anodized finish holds up through repeated use and regular cleaning. If you're running 50mm or deeper carbon rims and tired of fighting a pump head at the valve, this is the fix. Compatible with standard Presta valves.