I think duro makes a 4.00 19
I just ordered a hf314 4.00 18 for my b44. Totally reasonable price supposedly a k81 copy.
Yes, Duro does make a 4.00x19, I have a few. They are standard fitment on the Ural motorcycles too. BTW, where did you order your HF314 from?
Jon.....I haven't forgotten you.....still searching for a box and life keeps getting in the way.
Dennis Kirk ( I know, you didn't ask me....but they have that tire) is where I purchased my Duro tires. I'm not a huge fan but at one time they were the only option for the tire size I was looking for.
Had one go bad but it wasn't Duro's fault. (the tire was manufactured before the dating mandate) The new ones I'm using now are working out fine.