A single speed sure is nice and quiet, lighter weight, and simple to maintain....fewer parts to break or replace, too. Derailleurs are noisy for jumping, and you'll throw the chain frequently unless you install a guide.....but having gears can be nic...
One would have to be a very strong biker to ride a single-speed. There's only one gear combo, and it's the only one you can use for riding uphill and for speed--no granny gearing nor higher-speed gear combinations. All one can rely on is his own stre...
Mountain bikes is the best you climb a mountain speedest than the others the mountain bike have more power!!!