Mountain Biking - Wide Tires on old frame

What are the chances that I can fit Continental Mountain King 2.0 tires onto an old 80's mountain bike?

Here's the tires:

http://www.conti-tyres.co.uk/conticycle/ti%20raceking.shtml


and here's what the bike looks like: (old school Bianchi)

http://www.flickriver.com/photos/bikeinthecorn/1468678737/


Thanks!

2.0 would almost definitely fit. 2.2 and some 2.1 tires can be a gray area since they vary sometimes in how wide the edge of the tread is in relation to the casing diameter.

Actually nearly all Conti tires run narrow, and the Mountain King is no exception. I have some RK Protection 2.2 on a very old rigid Trek 830 (probably 1989ish), no problem at all!

I ran some 2.2" WTB Motoraptors on a 90(or so) Giant. I think that was about maxed out.

Depending on how knobby the tires are, you could do a little trimming.

The vintage MTBs that have come into my tiny flipping operation frequently have 1.95 as standard. Moveing to 2.0 should be no concern. I've run 2.1s on the Nishikis as long as the wheel is carefully centered. The problem wasn't the front wheel, the rear tire would rub on the chain stays. But I did come across a couple of bikes that wouldn't work with 2.1's so I'd say you have to try that size out before buying, also, the brand might have something to do with it.

Thanks! I will probably go for the 2.0 to be sure... I'm still looking for a good donor bike.. came across a nice Bianchi mountain bike from late 80's and early early 90's GT cross bike... both in the $150-200 range but after seeing them in person I passed because they had low low end components... I am going to keep on the hunt for one with top end components... I really only work with road bikes and do not want to get into mountain bikes... thus I don't want to have to do any upgrades...

One other thing to note is that you can probably fit a bit wider tire onto the front. A 2.0 in the rear and a slightly more aggressive 2.2 in the front or something like that would probably give you some really nice cornering traction and confidence to maintain speed through the corners.