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7850SL have no carbon in them, 7850CL are hardly 'fake' since the rims are very light compared with an all aluminium clincher rim, lighter than most all carbon clinchers in fact. Best of both worlds

Am I going mad or aren't shimano using some kind of laminate carbon thing laced onto an alloy rim (like the cosmics), whereas most people would assume a carbon wheel is made entirely of carbon, no (light or not)?