A bike may look like it would work
3. Noise matters.
Dual action machines generate resistance with a turning fan. That's a good way to make a lot of breeze as well as much noise and commotion. Does the bike you're looking at shield the rider from the wind? Is there some attempt to control the noise? There's more...
4. Looks can be tricky...
A bike may look like it would work, but look deeper. Look at the fit and finish of a machine. If it's really cheap to buy, there may be a reason. Quality pays, but it often costs too. Buy a discount machine and get ready for a self-destruct. Don't pay too little for an exercise bike. It will be a waste of money. The machine will likely start almost immediately to loosen and come apart, in some cases literally coming apart at the seams and joints.
