Tire size on stock rim

Was just wondering what is the fattest tires you can put on stock KZ1000 mag type rims(back) with stock swing arm?

I´d say 130, assuming the stock ST rim is 2.15 (?) - some would say 140, personally I think a 140 would "balloon" too much.

I have a 130 on my ST and it fits with about 1/4 inch to spare. :blink:

Dont think any thing bigger would fit :lol:

Yeah, I should have stated it was on an ST..glad you guys picked up on that. 130's? Thats awesome! Those bad boyz will be on first thing this spring. Nice thought, considering its snowing outside right now as I am typing this.

I had a 130 on the '78 Z1-R and currently have a 140 on the MKII with no problems, even with stock swingarms. Both bikes have the 2.15 rear rim. I think the 130 is much better though according to most rim/tire selection guides. The 2.15 really shouldn't have anything more than a 110, so 140 is really pushing it. I think the stock size was a 4.00 which converts to a measly 101mm! The LTD models at least got a 3" wide rim.

Just in case anybody feels "creative" ... I put a 1994 Yamaha FZR 600 swingarm, rim and brakes on my Z1-R. It was a mono-shock setup but, with a little welding and a few other modifications it fits really nice and provides a wider rim. The weight reduction is also notable as well, I lost about 15lbs. The brakes, rim and swingarm are much lighter. It's a "bit of a job" but works well. I have a picture of the bike in "The Gallery"

Darth