widest tire for a Z1

Hey guys I tried to search this but couldn't find anything, I was wondering what the widest tire is I can fit on this bike it has a 120 right now I was thinking about a 130, or even a 140 if it will fit on the rim
any help would be great
thanks
--Garth

with a z1 a 130 will fit, anything bigger and you may run into a interferance problem with your brake tourque arm and possibly with the swingarm if you do go wider you will have to be able to pull your wheel back in the adjusters quite aways and space your tourque arm over a bit to the right so you may have to go with a bit longer chain. if you do go to a 140 it will pull the side walls in and make the tire taller in the center so it will actually change the profile of the tire quite a bit. by the way a 120 works just as good or better than a 130 or 140 because the tire size is a much better fit for the actual rim width.

The problem with a wider tire on the stock rim is that the profile changes. The tire is no longer stable in the rim. The side walls start to move in the turns and it could get squirrelly. What ever tire you choose make sure that you watch for the minimum recommended rim width. A 140/70 should have a 3.75" rim but will be just OK with a 3.00" rim.

anyone know how fat a tire I can put on with an aftermarket swingarm and rim without running an offset sprocket?

thanks for all the help guys..I know the rim that is on the back is not an original z1 wheel cause it is only a 16" so I will have to mesure the width to find out for sure thanks again guys
--Garth

zfighter wrote:

thanks for all the help guys..I know the rim that is on the back is not an original z1 wheel cause it is only a 16" so I will have to mesure the width to find out for sure thanks again guys
--Garth

Yes, that changes the equation a bit...is it a Harley rim or an LTD rim (Kawasaki did produce many bikes with 16" rims)...you can run a slightly fatter tire on an LTD rim than on a stock rim (but still nothing as wide as what is available for current bikes).

Yes, that changes the equation a bit...is it a Harley rim or an LTD rim (Kawasaki did produce many bikes with 16" rims)...you can run a slightly fatter tire on an LTD rim than on a stock rim (but still nothing as wide as what is available for current bikes).

yeah I am pretty sure the guy I bought the bike from said the rear rim was from an LTD I wish I had the original wheels cause spokes look soo beautiful, but thats god to know, well I was just thinking about going one size up so like a 130 I guess I will have to measure the width of the rear wheel

On a 16" you can go quite wide. there should be no problem mounting a 150/80-16.

Roadrider AM26 (rear) 150/80-16 71V MT3.50 3.00 - 4.25 161 6.3 655 25.8 7.5

[/img]I have a 4" wide, 16" Hog wheel with a 150 Dunlop on it.
I used a 3/8 offset sprocket, no frame mods. Used a spacer on an aluminum back sprocket. I had to countersink flatheads into it.

GOT TO FIGURE THESE PICTURES OUT AND MAKE A FILE

the other thing I was thinking of was I was going to use a different swingarm and a 180 rear tire I know there is going to be an offset sproket needed just wondering if anyone would have an idea what offset for a sproket I would need, if anyone has some info on that would be great
thanks

zfighter wrote:

the other thing I was thinking of was I was going to use a different swingarm and a 180 rear tire I know there is going to be an offset sproket needed just wondering if anyone would have an idea what offset for a sproket I would need, if anyone has some info on that would be great
thanks

When running offset sprocket watch out as it may hit the sprocket cover.. On the tire size I have a ltd 16 and I'm running a 140 and its real close to rubbing chain and caliper stay arm but works...