With some help from the lady I rent from, we measured Danee tonight. I put a dowel rod against his chest & one against his rump & the measurement came to 43 inches. Then we did side to side at the widest point & came up with 15 inches. So if I understand correctly, 48 inch shafts should work for him, correct?
I just saw this post, I need to look this up as I really have no idea about the little guys. But it is great that you are measuring before willy nilly buying. There was a discussion or an article about this and I need to look it up.
It depends on your shafts. Some shafts end all the way to the point of the shoulder, while others end just in front of the tug loops. I have heard also the horses blanket size. I think, if your shafts are supposed to go all the way forward to the shoulder point 8" extra is to short. If you move the shafts back behind the shoulder, 8" might be enough, but better to long than too short.
Unless you have an air hose available at your barn, I would get a solid wheel instead of a pneumatic bicycle type. They are always flat, and they bend quite easily. I also prefer a place to brace my foot, and I cannot tell if that cart has that. Just my preference, but I drive green horses, and am klutzy and old, so my feet slide out of the cart, LOL!!