• Sorry, 40mm deep aluminium rims? Does he want wheels that weigh 2.5 kilos? 40mm isn't really semi aero and is well into aero territory. I don't even know any 40mm aluminium rims...

    Or are you saying that a carbon fairing on an aluminium rim works?

  • Yeah, sorry carbon fairing.
    Basically alloy brake surface for all weather braking is key.
    He has carbon rim brakes on his TT bike and they are mildy terrifying in the wet

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