The ENVE 45 is a modern carbon road wheel in every way. Riders with inclinations toward racing and hard solo efforts or those looking for the road lost and forgotten will find the dynamic properties the modern road rider needs. Built upon over a decade of carbon wheel crafting experience, the Foundation 45 brings our knowledge and technology to the masses. Blended aero properties, tubeless compatibility, and pinch flat protection for the rider looking to test the waters on carbon wheel performance. ENVE Worthy, and priced to provide the foundation for confident riding through performance crafted carbon in the US. – Intended use: Road, Triathlon, All-Road – Inner rim width: 21mm – Aero Optimized Tire Size: 25c-28c – Tubeless only