There are "felt" better under the special offers below 200 euro

This exercise bike I've tried with acquaintances, but then I bought another, namely those Hudora exercise HD 44 (probably their entry-level model). I hold in all respects for the better, as long as you do not need foldability. See my comparative review there. In summary:

Advantages of Hudora yoy. the Ultra Sports Klappt Rainer:
+ More Inertia in gear: 7 kg instead of 1.5 kg by bicycle something more similar feeling. When Ultrasport I find kicking already badly chopped and somehow "shock way" instead of round. Although the Hudora runs not as round as a real bike, but thanks to a flywheel but rounder than the Ultra Sport.

+ You can set it felt sluggish, as the Ultra Sport. So up to a Schwergängkeit, when I would turn down on a real bike long to a lower gear. The Ultra Sport against me would be on its heaviest level yet too easy. To really drive up dan pulse there, you would have been almost ridiculous rapidly-fidget. When Hudora that's not necessary.

+ The pedal connecting rods are similar to long bicycle in the Ultra Sport they are shorter (than in adults bikes available)

+ The pedals are below the center of gravity, not before that

+ Huge display area (digits are several cm high), while the Ultra Sport has only a tiny display in the thumb size.

Disadvantages of Hudora vs. the Ultra Sport:
- Not collapsible. Therefore emfpiehlt a "regular place". But the fact is advisable anyway, if the good intention not to fall asleep again. For this, the thing must constantly be mountable, and should not need to be always only for some relied on a training course "abducted" and up)

Neutral:
o The Hudora weighs (thanks partly thanks to larger flywheel and partly greater solidity?) 31 kg instead of 18 kg.
o Front of Hudora has two small rolls, so you can anlupfen him back and roll across the floor.
o Not yet reviewed capable (there is not long enough in use) is the battery by holding period. There are two ordinary AAA-AA cells, thus probably also went batteries.

One should at Hudora but possibly observe prices and take promotions unless there is currently appropriate "clearance sales" when Hudora. But even he is the regular price probably worth, though he of course there is under increased competition (eg with the Christopeit model range).

The Ultra Sport I give like 3 star for the excellent value for money even without promotions, although my review text sounds like rather less stars.