Since its introduction in 2009, the Smart ENVE System 3.4 Disc has established itself as ENVEs most versatile and consequently most popular carbon fiber aero road wheelset amongst road cyclists of all abilities. The SES 3.4 Disc 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 Disc 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 Disc wheel models, the SES 3.4 Disc features dissimilar rim shapes and geometries between front and back wheels to maximize aerodynamic efficiency and rideability in variable weather conditions. The front rim is 38mm deep and shallower than the rear rim to aid in cross wind stability while rear rim is 42mm deep and therefore improves overall airflow attachment. The SES 3.4 Disc features a disc brake specific carbon fiber rim design. In other words, this is not simply a rim brake model with no brake track. Each SES Disc rim features a disc brake specific laminate to ensure optimal performance on disc brake equipped road, cyclocross, and triathlon bicycles. As a result of disc brake specific engineering the SES 3.4 Disc is substantially lighter than its rim brake counterpart but equally as stiff and impact resistant. This is accomplished because we are able to deploy the carbon fiber that previously served the requirements for heat management to now serve the requirements for stiffness and durability. On the road the SES 3.4 Disc accelerates quickly thanks to reduced rim weight and inspires confidence in mountainous terrain and variable weather conditions.
|Effective Rim Diameter||580mm||573mm|
|Aero Optimized Tire Size||25c||25c|
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Model Number : FC-R8000 Series : ULTEGRA Crank Construction : HOLLOWTECH II Crank Arm Length : 165, 170, 172.5, 175mm Bottom Bracket : SM-BBR60/SM-BBR60-PB Chain Line : 43,5 Average Weight : 690 g (53-39T), 681 g (52-36T),...
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FEATURES SM-BTC1 mounts current SM-BTR2 battery externally next to bottle cage Low profile design mounts toany frame with bottle cage mount Junction B function Six E-tube wiring ports with cable...
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