I did have an old Aprilia Tuareg Rally 125.
Bonkers looking paris dakar replica type thing.
Quite capable as a trailbike though. First week I got it I rode it from Brighton to Kings Lynn - avoiding motorways as I was on L plates
Aprilia made quite a few different 125 2t trailbikes. Strong, reliable engines if looked after. All are autolube. Plenty of spares out there.
125's can cope with roadwork providing you've the right mindset for doing tarmac on them.
Whilst a 125 2t may achieve 70mph plus on the tarmac it's best to travel at 50-60mph. Remember to vary the throttle as this provides the lubrication to the engine - even on an autolube.