When I brought my new 74 Commando back in 76 the chrome on my wheels started to lift just after 6 month on both front and rear wheels and was replaced under warranty then a few years later the replacement rims started to do the same cause was rust lifting the chrome and been working at a chrome shop for 12 months after leaving school my impression was the rims were not treated right before chroming, so when I started my conversion to the Featherbed frame in 1980 I replaced the rims with Akront Alloy rims and they are still as good as the day they were fitted 40 years ago.
Ashley