The SES 5.6 is the evolution of the proven SES 4.5. The 5.6 sees tubeless tyre compatibility for improved traction, rolling efficiency, and less flat tires. For road racers and triathletes looking to maximize speed and efficiency through class leading aerodynamics paired with rolling resistance defying road tubeless technology, the 5.6 delivers. By employing the latest Smart ENVE System aero technologies, the SES 5.6 is faster, more stable, and designed to seamlessly pair with modern road bikes to improve your performance and ride experience. The SES 5.6 is also available with a Ceramicspeed bearing upgrade for the ultimate in fast-rolling speed and durability. CeramicSpeed Wheel Bearings have a proven lifetime, which is 3-5 times longer than standard wheel bearings. Our special CeramicSpeed coating delivers even lower friction and prolonged lifespan. TUBELESS FOR THE WIN Tubeless is the future and the future is now. Lower rolling resistance Flat less, ride more – Flat tires are a buzz-kill Run the Best Pressure (Visit our tire pressure page to dial in your best tire pressure) Hookless/Straight-Sidewall Design - ENVE chooses a hookless tubeless rim profile as it allows the rim’s critical tolerance at the bead seat diameter to be both consistent and accurate The ENVE SES 5.6 is optimized for use with tubeless tires 25mm wide Please refer to our Tire Compatibility page to see what tires are approved/recommended for use with the ENVE SES 4.5AR. Disc Brake Only Tubeless Compatible Only May run inner-tubes with tubeless tire SPECIFICATIONS DIAMETER: 700c RIM DEPTH: 54/63mm INNER RIM WIDTH: 19mm (rear), 20mm (front) HOLE COUNT: 24h/24h HUB: ENVE Premium SPOKES: Sapim CX-Ray NIPPLES: Brass Internal DRIVETRAIN: HG, XDR AERO OPTIMIZED TIRE WIDTH: 25mm WEIGHT: 1553g "Not only were the ENVE wheels faster, they also made for a much livelier ride feel, really bringing out the quality of the Wilier frame, hidden by the slow stock wheels." - Cyclingweekly LIFETIME INCIDENT PROTECTION AND 5 YEAR WARRANTY As a member of the Family and the original owner of your ENVE product, you'll qualify for ENVE’s Lifetime Incident Protection and have access to ENVE's industry-leading 5-Year Limited Warranty.