Mavic’s second generation carbon clincher wheels (imaginatively named internally ‘Carbon Clincher 2.0’) have now made the switch to a full-carbon rim – and, in the Cosmic Pro Carbon SL C and Ksyrium Pro Carbon SL C, our initial test rides suggest the French firm have produced two superb wheelsets: light, responsive, confidence-inspiring and with superb braking.
If you’ve read our full launch report, you’ll know that the new single mould construction process has raised the resin melting point under heavy braking, removing the need for the aluminium rim bed insert Mavic introduced with their first generation carbon clincher wheels.
This means the now full carbon rims are lighter than the first generation, and more responsive as a result of less weight being carried around the 40mm Cosmic Pro Carbon SL C and 25mm Ksyrium Pro Carbon SL C rims.
With that in mind, I was keen to get out and about on both wheels at Mavic’s press camp on the Cote d’Azur and put them through their paces. At the launch, we had the chance to ride both wheelsets, taking in the stiff climbs – including the Col de la Madone – and swooping descents along the French Riviera.