>>2628887>A 250cc MX bike will be the same way if not worseYZ250F. I don't race mine on the track but have some pretty spirited days out.
Manual says oil & filter every 3hrs, but reality says oil after a day or 2 riding, and filter every other oil change. Even that's excessive, there's never anything in the filter. Head hasn't been an issue since I've had it, hasn't even needed adjustment.
Valves are titanium, so if anything goes it's going to be the head itself.
Fork and shock seals I just run until they leak.
Steerer, wheel and linkage bearings at the end of winter, they're about done after a couple of months of wet rides. (Linkage anyway, but if I'm doing that, the others aren't much more effort to do at the same time.)
It's not the cheapest sport out there, but damned if I'm going to drop $23,500 (NZ) on the Specialized I saw in the shop the other day.
Or get one of those ones in OP - where would you even ride it? Classed as a motorbike, so not on the road. Can't take on a MX track. Or any of our forest parks (Almost a national park but not quite - OK to mountain bike, including ebikes).
ebike would be great for long trips into the hills, but I'm not spending new MX money plus on an assisted pedal bike. Tracks here are rugged af anyway, you'd need to push your ebike up a lot of it regardless, but it would make short work of a lot of the trails that get you to the fun stuff. Fun going down anyway.