Toro Titan Max Flat-Free Casters

[bly]

I purchased this mower a month ago to mow my ~10 acres and already have 2 flats caused by thorns.

Anyone have a recommendation for flat-free caster tires that'll fit the Titan Max (13x6.50-6)? I see a couple options on Northern Tools (Marathon brand) and Amazon (MARASTAR brand) but people are complaining about them not having bearings. Not sure if that's a big deal?

Thanks for the help!

 

[bly]

I think I'm going to get some Michelin Tweel casters. Just not certain on the bushing width for the spacers (5/8" vs 1").