All in one: CROSS TRAINER / EXERCISE BIKE

[NoTimeToDillyDally]

I sold mine a couple of years ago: it became a space hogger that I never used.

However, I now need to buy one as my son needs an indoor outlet for his energy.
I don't want to spend a fortune (esp. as this isn't the first time I'll have bought one), but need one that has decent, smooth resistance to it. My last one was good but sometimes felt that the resistance wasn't smooth - so I'm looking for one that doesn't catch etc.

Any decent and easily affordable ones I could look out for?