[oldpotatoe]

Originally Posted by Mark McM

Why Carbon?

Although people tend to rationalize the selection of carbon for reasons of performance ("It's lighter!", "It's more aerodynamic!"), the real reason is likely because it is what's new and in fashion.


Why Clinchers?

Because they are perceived (and with generally good reason) to be easier and more convenient, both for initial installation and for on-road repair. Also sometimes for performance reasons (they have become the best choice for rolling resistance and aerodynamics reasons for certain events, particularly Time Trials/Triathlons).


Many reach the conclusion that the answer to both questions is carbon clinchers. However ...

In many cases, when you combine two products, instead of ending up with the best features of both, you end up with the worst features of both. In many ways, this is the case with carbon clinchers. They are often nearly as heavy as aluminum clinchers, but without the consistent braking and good heat management of aluminum clinchers. Aerodynamics appears to be a wash.

Instead, a better answer to both questions might be a hybrid rim, such as on the HED Jet series and the Swiss Side Hadrons, which combines an aluminum rim extrusion with a carbon fairing. These wheels provide the same aerodynamics as full carbon clinchers at roughly the same weight, combined with the reliable braking of aluminum rims. The HED Jet series is also available with their proprietary 'Black" rim treatment, which provides outstanding (and long lived) braking even in wet conditions.

Carbon fairings on aluminum rims a fairly old idea..actually, but I know you knew this.