Wish I could find the michelin m29s in 2.50 here in the U.S.
I think it'd be the ideal Puch tire.
I have 2.75 m29s on my newport but they're just a bit too big.
IRC 'zap' 2.50 tires on my maxi luxe. Better fit, but not the high quality build and nice looking tread pattern of the michelins.