Atsa what I think. Probably wood rims and 30 / 32 mm tires. I have a few pair of OLD NOS FRESH Continental Gumwall 1x1/4 sew-ups that should be perfect for that bike. Nice fat old BAAAAD roads type Donuts. $50 each, plus shipping.
> Art Link wrote:
>
>> The bike has full aluminum fenders and dropped bars,thus a "semi- racer".
>
>
> I think your '35 Maino is a "full" racer, Art... as in pro. All racing
> bikes back then came with fenders and a Vittoria Margherita is a full on
> pro set up too. Quite possibly the 27" aluminum clinchers aren't
> original to the bike?
>
> Chuck Schmidt
> South Pasadena, CA USA
> http://www.velo-retro.com (reprints, t-shirts & timelines)