I'll be the first to admit that I don't know all the ins and outs of swapping wheels. Having said that, I'll pass on the following, which recently appeared on the Peugeot listserver. 405 Wheels are 4 lug and 108 mm spread 14 X 5 1/2 alloy 8 spoke 14 X 6 alloy 5 spoke 14 X 6 alloy Diamond spoke 14 X 6 alloy 8 Hole an optional wheel for the 405 was the 15 X 6 alloy 5 spoke