OK we've had the new Jet 150 out the last couple days and the stock tires are not going to cut it in the snow..... in the summer they'll be ok. To begin with they are the low profile stiff walled tire add our -5c or lower weather and they get real hard and slick. Not too effective in the snow we find. Same as our 110cc with those sort of tires.

ON my old Honda and our baja 90 we have just a general purpose soft knobby type of tire. The kids say the baja even with the smaller tires goes through the snow the best.

The Jet 150 has 19x9.5x8 tires on the back now. I've found some general purpose knobby tires in the following sizes
19x8-8
20x9.00-8
21x9.00-8
21x10.00-8
22x11.00-8

SO I could go with t 20x9-8 which is close to the size I'm running now.
But the 22x11-8 is common and I can get them cheap locally.

I was wondering if my gear ratios would get too far out of wack going to a 22" tire.

Anyone played around with tire sizes on these things??

 

You will definitely lose low end power and gain top end with the 22's. Is there some way you can measure the 22" tire when its inflated? Then get a accurate measurement for the stock tires and see exactly what the difference is. Would you put bigger tires on the front also?

 

I talked to Jetmoto Canada and they said the same in that it would be too big a jump in size and would cause low end (hill climbing) issues. Personally I think going with say a 22x10x-8 tire (yamaha 125 Griz. tire)on the back and changing the sprocket ratio would make it a nicer all purpose (summer/ winter) "trial" quad. As for just ripping around on dirt its fine the way it is from the factory. But then one would probably have to swap the front tires too with 22" on the back.

I seen on raceway's site that the Kazuma 150 runs 22" tires on the back.

We'll probably run it like it is for the time bieng till we figure something out.

 

You know what I think I found. The 150 tire did do bad going forward in the snow. I did not occur to me till later that every time I got stuck going into the snow I would put in reverse and it will dig me out no problem. I think the tread if installed backwards becomes a digger. Try reversing them first and see what happens, can't hurt to try!

 

Outoline I have them on backwards right now.....by mistake when I put them on!

I'm going to give a full review of assembly things I found and oberservations of the quad it self after we've run it more.

 

Good thinking outofline!! Try using 2psi or lower in the tires also Sawyer.

 

Well we did a tire experiment with the Jet today. The knobby tires off my old honda bolt right on to the jet so we took it out for a spin. WOW........what a difference in the snow the jet went better in the snow than my 250! I was surprised it handled the 25x12-9 tires pretty darn good. The CVT trans compensates really well. The hill we have close by it ripped right on up but you could tell it had less low end torque. We even tried them on the 110 quad, it looked kinda funny but it handled them not too bad. One big differance is the ground clearance gets raised to 7".

So I'm pretty sure the 22x11-8's would work ok on the 150 but were going to get a couple 20x9x8's to start and try them on both quads. As I'd like to switch the ones on the 110cc quad too as they are poor in snow.

I posted a pic. of the 150 with the big tires.

 

I just approved your pic page. It looks kinda funny but if it works, what the heck. Probably does make a huge difference in the snow.

 

Well we got another set of rims and put on some 20x9-8 soft knobby tires (see pics) and they work really GOOD in the snow. Now basically the 150 can go anywhere I can go with my old 250.




We have found that it doesn't do "donuts" as easy with those new tires and all the traction they have. So its a bit more tippy and one has to be careful. Also it has more top end of course and a bit less torque then the stock tires. With just a kid on it its not that big a deal. But with an 200lb Adult on it climbing a big hill in the summer it may be a factore. Thats why we kept the stock ones. We may just use these for the winter. Also the new tires give a smoother ride.

 

The new tires look real good Sawyer, almost normal. Too bad they done make them in a smaller dia so you wouldnt lose the power.