What is BMX vs mountain vs trials vs etc...?
Hey, I ride a road bike. It's really simple because they are all the same - they are all geared, high saddle, drop bars, 700c wheels (or very close).
I would like a fun bike that I could hop, do wheelies, and play around, but all the different options are really confusing to me. I would also like to ride backwards, but it seems you can't do this on BMX, mountain or trials. Are there fixed gear bikes sized more like a BMX?
1) 20" vs 24" vs 26" wheels - what is the benefit of smaller wheels? It seems to me that small wheels would be really slow. Why do trials bikes have big wheels while BMX have small?
2) Seat height. Is it just that a low seat means you can jump and drop more without being smacked with the seat? Again, it seems like a low seat would be a real pain to ride more than a mile/a few minutes.
3) Free/fixed. It seems like people pick on fixed gear trick riding. But how about riding backwards? Also I'd think wheelies are easier on fixed gear.
4) Gear ratio. Again, I would like being able to travel somewhat conveniently on any bike I own. 20" wheels with 2.75 gear ratio is going to be really slow, even while spinning super fast. is this why some people like the 24" wheels? What is the downside to 24" (see question 1)?
Hope someone can help. Searching all over online and most hits I get assume the reader already knows what the difference between bmx/trials/fixed gear/mountain/etc are.