Originally Posted by
flyin9monkie
I initially bought a folding bike thinking it can save space in my apartment but it was such a hassle to fold it up every time that I just decided to leave it in the corner. So I don't want to get another folding bike if I'm not taking advantage of the folding part. The old bike is also extremely heavy; must have weight over 30 lbs. Since I'm getting a new bike, I figured I can get a more efficient bike with the same budget since it doesn't have to be a folding bike.
This is what they said under cassette/chain: Dicta Heavy Duty single speed 16t / KMC Z510 RustBuster.
I also emailed them asking how the fixed gear on that bike compare to multi-geared bikes.
Sounds like a good reason not to get folding bike - the hinge on the eBay bicycle doesn't look like the most rigid, but I doubt you'll notice the hinge (or the weight) for a 2 mile ride (or even a 16 mile ride).
For gear comparisons, I'd look up an article on gearing on wikipedia or sheldon brown. This will let you compute the gear ratios; the single speed manufacturers will typically tell you how many teeth are on the chainwheel (front gear) and sprocket (back gear) and the wheel size.
Gear inches - Wikipedia, the free encyclopedia