In Reply to: Tires for 641 posted by Tom on March 03, 2019 at 19:25:04:
UD is right, tire will look small. My friend switched them off an 8n to his 621 and they just don't look right although they will work. I will say this I have a set of Armstrong Hi-trac in 11.2 and they are every bit as high as my 12.4s. In this case I would try them on to see how they look.