elevate the back wheel, then use tape to make a flag on the frame and the back wheel in a spot where one of the cranks will point to the tape. then go through all the gears making a note of how many revolutions it takes for the tape flag you have created on the back wheel to be back in sync with the crank. check your notes.
I'd do a net search for "Sheldon Brown online gear calculator".
Input the specifics of your bicycle into the boxes, then hit "calculate". Done!
the speed sensor on most cars are located on the transmition because the movement of gears in the transmition determine the speed of which the car is moving and the miles per hour
Bevel gears can change the speed and motion and Worm gears can reduce speed and direction of motion.
Gears - wherever you find them - is a way of trading strength for speed, or the other way around. On a bike they let you keep pushing the pedals at a comfortable pace and effort uphill as well on the flat.
Gears are a toothed machine part, such as a wheel or cylinder, that meshes with another toothed part to transmit motion or to change speed or direction.
difference between 3 and four speed is, a 3 speed has 3 forward gears. a 4 speed has 4 forward gears
Multiplying Gears- a device that increases the rotational speedReducing Gears- a device that decreases the rotational speed
The idea behind multiple gears on a bicycle -- whether it's an older "10-speed" bike or a modern mountain bike with 24 gears -- is to let you change the distance that the bike moves forward with each pedal stroke.
The transmission uses a series of gears to transmit power to facilitate changes in speed .
Gears.
6 speed
6 speed or 6 gears how ever you want to look at it.
You have to use it when you are driving in mountain areas where to have high speed is not a good idea. The overdrive function does allow the transmission to switch to higher gears.