For the same reason that cars have gears, to allow the vehicle to be driven at greater speeds.
It depends on the bike if the engine of bike is heavy it has more gears. Usually 5 gears are max gears.
Yes motorcycle gears will shift up and down.
The whole thing about motorcycles is that their operation is 'simple for safety'. The gear shift only goes in two dirctions so the gears are sequential; you cannot slip gears the way you can in a car. Because you can safely ride the clutch and accelerate hard in any gear, there is no need.
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.
some gears i found is clocks,wheels,bycicles,stick shifts,and motorcycles
ERM... fishing rods bikes clocks shipps rigging computers cars phones
Most motorcycles have 5 speed transmissions although there are a number of bikes with 6 speeds including Harley's big twins.
Yes there is, otherwise it would not be able to drive. The transmission is the gears, the chain and the sprocket. Some motorcycles have a drive shaft instead of a chain.
well you use the brake and move down the gears to match the speed, if you dont know those things dont ride motorcycles cause you could crash
motorcycles'
Ural Motorcycles and Ultra Motorcycles.
Most motorcycles have 1 gear down, and 5 gears up. You push down for first gear, and lift up on the shifter for the other 5.