Carbon composite bicycle wheels are a fantastic choice for competitive road cyclists who want to reduce their bike’s revolving weight, while maintaining wheel strength and rigidity. They do have one drawback however: standard hard rubber brake pads don’t work that well against carbon rims, especially in wet conditions or when excessive heat is being generated, such as on steep descents. Cork pads are sometimes used, but these can disintegrate when wet. Disc brakes are another alternative, although their added weight somewhat negates the weight savings gained by switching to carbon wheels in the first place. Now, heat management company Zircotec is experimenting with a thin spray-on ceramic coating for carbon rims that allows for effective use of rubber brake pads under all conditions.
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