Nice! The treads are almost completely gone on the drive wheels of my 21" Snapper, but so is the deck unfortunately. It's only 12yrs old too.
Wife and I bought out house in 1988 - it was a stretch money wise - drained our savings.
I needed a mower - so I went to Builders Square and they had 20" mowers on sale for super cheap - $69 or $79 I can't recall.
I figured I would buy the cheap mower - hope it lasted a couple years - and then buy a better one when money was not so tight.
That mower - with a Tecumseh engine ran and ran and ran - after 10+ years the deck rusted out so bad one wheel fell off. I drilled a hole in the dock and reinstalled it!
The handle broke off - so I cut it short - pounded it flat - drilled two holes and reattached it.
My wife lover it - she is short (5'2") and the shorter handles were a perfect fit. She started mowing the lawn!!
Then the top of the deck rusted out - I used "silver" tape to patch it.
When my daughter and her husband bought a house in 2007 they didn't have a mower - and were tight on cash. I had purchased a new mower but the old Tecumseh was still running. I gave it to them.
They used it for several years - I retaped the deck a few times.
They bough a new mower and ask if I wanted the old one back - I said no.
It was sad to see it out by the trash - but a neighbor ask if they could have it - my SIL said sure it still runs.
I would - every once in a while see the neighbor mowing his grass with my old Tecumseh mower -that would have been ~~ 2009 - 2010 - and it was >22 years old.
I recall seeing it smoking pretty bad - but still cutting grass.
Best mower ever -----------------