The SES 7.8 features asymmetric rim geometries front to back, with a front rim that’s 71mm deep and 29mm wide, while the rear rim is 80mm deep and 27.5mm wide. What’s more, they also have dissimilar sidewall curvatures, due to their differing depths (see cross section above).
Wait, what? "Wheels only work in a bicycle frame," said SES founder and aerodynamicist Simon Smart. "To test and develop wheels in isolation from the rest of the system does not answer the right question. The question we are answering is: how do you make the entire system more efficient?
"When developing a front rim shape we are looking for the best compromise between steering stability and drag reduction from the relatively clean on coming flow. In contrast, the rear wheel is seeing more turbulent flow, a larger frame interaction and we do not need to consider steering stability. It therefore stands to reason that a more efficient solution can be achieved by developing unique front and rear rim shapes."
So proud is ENVE of these new wheels that the brand claims them to be ‘as fast or faster’ than the deeper SES 8.9, but with stability and handling characteristics to rival the shallower SES 6.7 wheelset.
- Revolutionary disc brake specific, aerodynamic, carbon fiber triathlon and time trial wheelset.
- With no braking surface, the rim can be made more aerodynamically efficient and impact resistant.
- Patented SES rim curvature has been optimized for disc brakes.
- Tubeless compatible and can also be run with standard inner tubes and tires.
- Aerodynamically optimized around fast rolling 25mm tires.
SPECIFICATIONS:
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Position Front and Rear
Wheel Diameter/ISO 700C / 622
Axle Type F: 12mm, R: 12mm
Hub Spacing F: 100, R: 142
Wheel-Brake Comp. Disc IS 6-bolt
Freehub Body Shimano HG 11
Wheel Tire Type Tubeless Ready
Rim Material Carbon
Rim Construction Double wall
Rim Internal Width 19mm
Rim inner width range 0-21.9mm
Rim Color Black
Rim Drilling F: 24, R: 24
Hub Model DT 240
Wheel Weight 1711g
Spoke Type -
Valve Presta
Rim External Width F: 29mm, R: 27.5mm
Depth F: 71mm, R: 80mm
Rim Model SES 7.8 Disc
Skewers Included No
Buy a ENVE SES 7.8 Disc-brake Wheelset, Clincher from Texas Cyclesport, A Better Bike Ride Begins Here.
