My cb 550 k3 when I bought it was made up of loads of bits that don’t belong on it I’m slowly replacing with correct bits as I find them it had what I think was a rear mudguard off a F1 fitted with the rear light unit with the reflectors down the outside edge I’ve acquired what I believe is the correct mudguard and the correct rear light which has the round reflector in the middle was just wondering if anyone knows what the other light unit is off it has a shorter wiring harness than the k3 one I’ve looked on cmsn it shows rear lense with only two screws on the f1