Yeah MX's dont have the same sidewall rock hardness that the azenis has.

but the MX runs large, possibly larger than an RT215.

for the record i've seen a 225/45/17 azenis on a 10" wheel so they will stretch and fit, you just need the cheetah.

MX's will moutn on tires sooo easily because the bead design is well made and the sidewall has just the right stiffness to it. picture it something like an ES100 sidewall.