Same as the other guys:
Part number on back, triangle, Fox head (maybe), size stamped.
When they are on the vehicle, feel the inside of the spoke, since true Fuchs are forged, they will be smooth, knock-off copies are most likely casted, so rougher.
Real Fuch
Poor knock-off copies will even mess-up and not cast the Fox head, but cast a bear instead...
Not a Fuch
