Wheels have always been one of the most talked-about bicycle components, as they should be. After all, few things can have as big of an impact on performance as what wheels you’re rolling on. Unsurprisingly, as with so many other aspects of cycling, wheels too have become part of the fashion equation. Currently, the ‘aero look’ is in, and the industry is responding enthusiastically-just as it did with the ascendance of carbon fiber.
French professional team AG2R uses Michelin tires on Reynolds full carbon clinchers for the majority of their races.
Outward pressure on the clincher’s sidewall from the tire can be too much if braking heat reaches Tg, which can result in a rim failure.
By contrast, due to their open profile, tubular rims are not affected by the same sidewall failures caused by heat and tire pressure that clinchers are.
A popular alternative to full carbon clinchers are co-molded, deep-section rims. While not suffering from braking heat issues, they d come with a slight weight penalty.