The BX 1880 come with tires/wheels, size 16" front and 24" rear. Are they appropriate to put on a 2007 BX 25 that come with 18" front and 26" rear? Has anyone done this swap and does it cause a problem when 4 wheel drive is engaged?
When putting them on my BX2370, the rears are a direct fit, no problem. The front wheels have a smaller diameter center hole, so they will not fit the same as the originals. However the bolt pattern is the same, and they will bolt on. I don,t know if that would cause a potential problem down the road, or not.
My BX1860 has the same size tires as the BX1880 but I upgraded to the tires for a BX2360, which are the same size as those on a BX25. Since I was able to do a direct exchange up one size, I don't see any reason that you cannot go down to the tires for the BX1880. I don't know why you would want to go down one size though. That seems to be a downgrade to me.