• "With the Open Pro CD they have created their most reliable, all round rim yet. 'Couche Dure' or 'hard layer', these rims have evolved from the fantastic Open Pro range becoming more durable than ever before."

    Marketing bumf. So, more durable than Open Pro. Not as a durable as ceramic?

  • Woops sorry, yeah it's basically a cosmetic finish, whereas the ceramic is meant to make braking better.

    Opinions differ widely on whether or not it actually does though.

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