I bought a Diamondback bike for around 1000 bucks. Works great and I have had it for about a year. They have different models and prices, check their website out: www.diamondbackfitness.com
I prefer the upside-down bicycle popular in aerobics in the late 70’s and early 80s. Where you’re on lying your back and your hips are elevated on your arms and you’re pedalling your feet in the air.
Without question the best fat-burning exercise ever invented. It’s the secret Lance Armstrong uses.
How about the one T-Jacked a while back from IronCompany? Looked good. Rated high. Less than 600 on sale I think. Don’t know if the sale is still running or not.
I won’t recommend brands or models, simply because I don’t know what’s there, but I will make some general recommendations on what to look for regarding fit.
Make sure that the seat isn’t hard-welded in place, that it uses a standard two-rail seat that can be replaced with anything out there in any bike shop. Seat position as well as configuration is a very personal thing. And your comfort on the bike will go a long ways to your incentive to use it.
Make sure that the adjustability of the seat is fore-aft, tilt, and rotational, not just vertical. For guys especially, there is a preferred “junk direction” that can be better accomodated by turning the nose of the saddle SLIGHTLY to the right or left. Also, the seat should be SLIGHTLY tilted up to the front. Again, this is a matter of comfort and the degree to which you do any of these is a personal matter.
The fore-aft adjustment of the seat is for KNEE POSITION relative to the pedals, not for reach adjustment to the bars. If there’s no reach adjustment up front, you’re going to most likely end up either (a) overextended and get lower back pain, or (b) underextended and have your weight balanced too far back (on your ass), causing discomfort there.
Pedal spindles that are a standard thread to the bike industry. Believe me, you’re going to want to eventually go with a pedal/shoe system as opposed to flat pedals or pedals with straps. A lot of the cheaper ergo bikes use hardware-store type pedals, and the threading pattern is not compatible with the better quality pedal systems out there.
That’s about it. Beyond that it’s a matter of taste as far as stepped resistance vs a continuum, and what the thing tracks. I’ve just used my road bike set up on a stationary trainer that uses magnetic resistance. Sometimes loud, and does wear out tires faster, but it’s my regular bike (that I KNOW fits me perfectly).