hi ! i received a new rim today for my 74 CB750 . i planned on lacing it to my rear hub and use the same tire but after a quick look i figured it would just stretch the tire . it is a 4.00 - 18 Avon . it is also the first time i mess with motorcycle tire sizes.
Will it work or i need something wider ? What should i look for ? i know it is gonna be thight in the factory swingarm but i can easily cut some room and weld it smooth.
Any input appreciated !