Since its introduction in 2009, the Smart ENVE System 3.4 has established itself as ENVEs most versatile and consequently most popular carbon fiber aero road wheelset amongst road cyclists of all abilities. As such, its no surprise that ENVEs first stage victory at the Tour de France was delivered by Steve Cummings aboard the SES 3.4. The SES 3.4 is wider than its predecessor (29mm wide external, 21mm internal) to improve rolling resistance and improve aerodynamics for use with 25mm tires. In addition to added width, the versatile and reliable nature of the SES 3.4 has been augmented by incorporating road tubeless tire compatibility. Road tubeless compatibility means improved rolling resistance, comfort, traction, and a reduced propensity for flat tires. Like all SES wheel models, the SES 3.4 features dissimilar rim shapes and geometries between front and back wheels to maximize aerodynamic efficiency and rideability in variable wind and weather conditions. The front rim is 38mm deep and shallower than the rear rim to aid in Bike Force Docklandscross wind stability while rear rim is 42mm deep and therefore improves overall airflow attachment. For riding in mountainous terrain where heavy braking is required, the SES 3.4 features a high temperature resistant resin system and ENVEs molded in brake track technology to ensure rim integrity and precision braking when and where it is needed most, in mountainous terrain.