Yes you can tube them. :fing32:Not sure what rimguard is ?? Last spring I put some green slime in my tractor's tubeless tires and have not had leak since. I wonder if the rims can be converted to use tubes in the tires?
I was mainly interested in your opinion concerning the quality of parts and finish. For example, except for the decks, none of the four I have show any rust whatsoever anywhere (2 3813's, one 4213, and one 4514).The 4120 appears to be newer model, it is air cooled while the 4518 is water cooled. It seems like 4518 has more power than 4120. The deck appears to be the same. I'll post some pics later. Is there any specifics that you'd like me to take pics off?