new tires for 1974 sportster

[sailfish]

Iam looking for replacement tires for my 74 sporty it is all oringal the tires that are on it are the special goodyear front MM90-19 (3.75 x 19) sport rib back 4.25 x 18 the ones that are on it are the ones from the factory and they are starting to crack.

[tst]

Harley came out with a service bulletin after they and goodyear discontinued those tires, they claimed that the double beaded wheels were unsafe to use with any other tire and told you to throw away the rims and replace with the conventional style that was sold before and after these wheels were made, i have seen many tires on the double bead rims, i have never heard of a failure
Tim

[sailfish]

thanks tim