I have a 1986 Yamaha moto 4 225cc and am wondering if the 25-10-12 tires and rims off a Grizly would fit. If anyone could help that be cool thnx

 

Here is a good start ATV Tire and Wheel Application Chart : ATV Tires Free Shipping : ATV Wheels : Mud-Throwers.com.

You have the grizzly rims or only the tires?

 

Yeah you might want to make sure the Moto 4 has 12" wheels. A lot of older quads had 10" wheels so the tires wouldn't fit those. If you have the wheels, the front ones might fit but the rears wouldn't as the Grizzly has independent rear suspension and the Moto 4 does not. I have a set of stock wheels and tires off a Grizzly 660 that are just sitting now as I traded the Grizzly for the Brute Force I have now. If I had gotten a Brute Force with irs, the wheels would fit. The one I have has the solid rear axle and they don't.

 

Ya i have the tires on the rims from the grizzly wich are 25-10-12 but my old tires where 25-12-9 on my moto 4 so wut im tryin to figure out is if i could just put on the rims and tires from the grizzly and if they would fit on the bolt pattern cuz i dont know much about quads cuz this is sorta my first project bike and i got it fully rebuilt except the tires

 

As long as the bolt pattern and off set is the same you are good to go from a 9" rim to a 12" rim.
I think the Grizzly and Moto4 both have the same 4/110 Bolt pattern, but use the chart link I gave you to check if the off-set is also the same. The link explains what a off set is in case you do not know.

 

Hey Thnx alot man that really helped cuz i was kind of stuck on that and now that i got the chart my options totally opened up you wher a great help