Hacker News Reader

A disadvantage is that only the rubber absorbs impacts, since the fluid is incompressible for all intents and purposes.

The tyre is only partially filled (for example 40%) with water - so the tyre is not “incompressible”. https://salesmanual.deere.com/sales/salesmanual/en_NA/tracto...

I see. Furthermore, there is an admonishment:

IMPORTANT: Never fill any tire to more than 90% full. More solution could damage tire.

... but for 'intensive purposes' on the other hand the story is less clear