What size deck wheels were original on a RM-485?

[pacer 3,177]

Theres been so many tire/wheel posts lately, I thought I'd ask one too...

 

I need to replace the deck wheels on the deck of this 1054 I'm rebuilding and am puzzled about the diameter of the originals. The deck is a RM-485. The ones that were on it from the seller was a crappy cheapo plastic thing that is all cracked/broke. The size is about 4 1/2" and all I can find is 6" (or larger) I have to wonder if I go to 6" if they would affect the blade/deck height settings, so, do I need to keep looking for the 4 1/2" or would a 6" not be a problem? I got a feeling that the PO just stuck whatever he could get hold of, which happened to be the 4"

 

Heres a pic of the crappy 4's and a pair of 6's that I had laying around---

[gwest_ca-(File Mod) 11,510]

110506 Replaces 2663 4121 5169 5305 106022

Stens HD 210-013

6"x1-3/4"

Garry

[pacer 3,177]

OK, I had pretty well figured they were 6", but wanted a little assurance...

 

Thanks