When first learning to ride a bicycle, a single speed drive with brakes where you peddle backwards reduces the complexity of what you must practice.
Later a 3 speed can be used and eventually a multispeed derailleur shifter can be learned. But you need to start with the simple things first.
no
No. Bicycles with external gears have chain-and-sprocket gears. Bicycles with internally geared hubs have both a chain-and-sprocket gear and spur gears (usually in a planetary configuration) inside the rear hub. Then there are the rather rare shaft-drive bicycles, which use bevel gears. And maybe an internally geared hub as well. Then there's the occasional belt drive bike of course. And one or two CVT designs.
Clocks and watches have internal gears. Bicycles and can openers have external gears.
Depends. Bicycles with external gears have chain-and-sprocket gears. Bicycles with internally geared hubs have both a chain-and-sprocket gear and spur gears (usually in a planetary configuration) inside the rear hub. Then there are the rather rare shaft-drive bicycles, which use bevel gears. And maybe an internally geared hub as well. Then there's the occasional belt drive bike of course. And one or two CVT designs.
Yes. All bikes have at least one gear, some have quite a lot more.
my merucry mystique dont shift gears fast
spur gears are used because there are many things such as bicycles that cant exist without a spur gear' > gearboxes, mechanical watches, cam drives
Logos. has written: 'Variable gears' -- subject(s): Bicycles, Gearing, Design and construction
There are many bicycle brands for kids available. Some of these include: Specialized, Diamondback, Huffy, Scott Sports, Sun Bicycles, Next, Jamis and Kona.
Bicycles have multiple gears so that it's easier to go up hills, and so you can go faster on level ground. Read this article and in five minutes you'll know how to use your gears.
Schwinn, Trek, and Mongoose are three popular manufacturers of bicycles for kids. These companies provide high quality merchandise that is suitable for young people.
Gear orientation is the same on all stock bikes, all over the world.