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Enve Enve 4.5 SES Tubular Road Wheels From £1150.00
Enve 4.5 SES Tubular Road Wheels
Enve 4.5 SES Tubular Road Wheels
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Key Features

Material: Carbon Fibre
Rim Depth: Front 48mm / Rear 56mm
Internal Rim Width: Front 18.5mm / Rear 17mm
External Rim Width: Front 27mm / Rear 25.5mm
ERD (effective Rim Diameter): Front 563 / Rear 545
Built Weight: 1449 grams
Rim Weight: Front 361 grams / Rear 399 grams
Recommended Tyre Size: 23-25mm


ENVE's SES 4.5 Carbon Road Tubular Wheelset meets what may be the last two reasonable demands that any sprinter/puncher/climber could make of the celebrated Utah-based manufacturer. First, a mid-depth rim that fills the gap between the climb-happy 3.4s and the cruise-missile aerodynamics of the 6.7s. Second, the inimitable road feel, low rolling resistance, reduced weight, and plush ride of tubs. The SES 4.5 Tubs' combination of aerodynamics, low weight, and tubular tires made them an inevitable addition to ENVE's line and the inevitable choice on race day.

Like the rest of the SES line, the 4.5s' rims aren't subjected to static, arbitrary NACA widths and shapes. Instead, the engineers let each wheel's depth requirements dictate the ideal dimensions in order to reduce lateral forces and increase aerodynamic benefits across a wide range of yaw angles. This is evident in everything from the rim's rounded inner face to the position-specific dimensions for the wheels, which takes the shallow, stable front and deep, aerodynamic rear wheel philosophy to its logical extreme.

The result is that the 4.5 handles crosswinds and gusts with the confident stability of a wheelset with half its depth by building up a side-force equal to the changing angle of the wind. While this sounds like so much marketing palaver, it's verified by a Stability Index, an externally developed testing protocol borrowed from the Formula One industry. ENVE remains the only cycling manufacturer with the confidence to measure its wheels by such a demanding metric.
To rate a wheelset on this index, the front wheel is subjected to quick changes in wind degree at set yaw angles, and the steering torque of user-correction is then measured. This helped ENVE dial the wheels to handle with intuitive predictability, even in gusty conditions or frequently changing wind angles.

Of course, aerodynamics and handling are absolutely meaningless if a wheelset crumbles at the first sign of less than optimal road conditions, so ENVE's obsessive engineering carries over into the wheels' materials and layup. ENVE routes the fibres around each hole in a 100% intact design no cutting, machining, or drilling required. By continuously wrapping the fibres, ENVE adds strength, boosts rigidity, and allows for less material and a lighter rim. The use of a removable bladder also keeps weight down compared to other wheels, so the SES series boasts the highest claimed strength-to-weight ratio on the market.

The R45 Chris King hubs are 10/11spd compatible and available in Shimano/SRAM or Campagnolo versions. Like all Chris King hubsets the R45s are designed to be easily upgradeable and convertible. Changing one version to another is simple, only requiring the use of version specific driveshell assemblies and axles.
As with every Chris King bearing, the stainless steel sealed bearings featured on the R45 hub are made in-house in Portland, Oregon and individually hand-checked for precision and smoothness. The proprietary bearing design allows placement of more rolling elements per bearing meaning greater durability and precision. R45 bearings also feature lightweight, low-friction seals for fast rolling and can be easily serviced at regular intervals using only a single 2.5 mm hex wrench and penknife.

NB: Image for illustration purposes only

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