Tracks on a diesel powered Kubby side by side would be interesting in as much as they don't make gobs of power to begin with. I would think the parasitic loss from the track assemblies would further degrade the power output, but what do I know. Not something I'd be interested in anyway. We own a Kubota side by side but not a diesel powered one, rather a gas powered unit that actually produces good power and travels over the 25 mph speed that all the diesel powered ones are governed to. Ours will ran close to 60 if necessary, not that we do ever simply because 60 is scary in it.