I finally got the old rubber off of the 1050. One of the rims has two small spots where it has completely rusted through. Patched it with Por-15 epoxy, which may hold air, it dries very hard. If I do have to replace the rim can someone tell me what size and bolt pattern I need for the rear of a 1966 1050? While you are at it, is there anything special I need to know if I need to replace the fronts?