Leaderboard

My `1991 Honda Fourtrax 300FW actually calls for 1 " smaller tires on the front than the rear .... 23" diameter on the front and 24" on the rear because of a slight difference in the gear ratios in the differentials. . That being said most, including me run the same size tire all the way around. The gearing is close enough and since quads are seldom ridden on pavement or hard surfaces that prevent tire slip we don't have a problem with drive train binding. Yes, it is "normal" to have tire sizes front and rear the same on 4x4 trucks and SUV's but it is not necessarily so on Quads , tractors and some other off highway equipment that are 4 x4 or all wheel drive. I don't know the specs on other machines. That is why I suggest checking because although the same size is normal all the way around but if a machine for some reason uses differing ratios it can cause binding and breakage . I would guess newer machines would be the same all around but double check yours to find out. It doesn't hurt and can save grief down the road .

4x4s in general have the same gear ratio front and back unless specifically designed otherwise. All four wheels have to rotate at the same time with cars and trucks as well. So unless there are specific builds then yes same size tires are required.

It depends on the quad whether all 4 tires are the same .. Check the owners manual or online .. Some have a slightly different gear ration front and rear and use smaller tires on the front .

Have you checked that all four tires are the same size? It appears that the fronts look smaller then the rear bit it could be the pic. All 4x4's have to have the same size. Just a shot in the dark but hey could be.

That's a bayou 300. If all 3 wheels locked and it won't roll i'd check the ujoint in the rear axle housing. Just had a Honda 300 blow that ujoint and tear the primary gear drive out of the side of the block when it did. Unfortunately you have to pull the rear diff and slide the axle out of the housing to check but that would be what i would suspect first.