You don't NEED them. They just make pedaling much easier and more efficient.
It has many parts that work together to preform a function. Just like other comples machinesIt's got wheels, axles, levers and gear ratios.Because it consists of many simple machines.A bicycle is built up of several simple machines, (the lever, wheel and axle etc), and several simple machines interacting becomes a compound machine.
Deciduous forest have landforms of mountains,valleys,hills, and flat plateus.
It depends upon the vehicle. In most cases in order to haul a load, a vehicle needs a lower gear than if it was unloaded.
simple move slower
When gasoline is burned in an engine, it causes the pistons to go up and down. The pistons then turn the cam shaft which turns the transmission and drive shaft. The drive shaft turns the wheels after the car is put into gear.
A Gear bycicle uses gears to change its power
Depends more on what type of gears that you have than it does on the size of the wheels. If the gear levers are the same type as on a bigger bike the 24 inch bike will shift just the same way.
The 20" will ride smoother on uneven ground, but IMO 3-speeds aren't enough. with 3-speeds you get fairly large jumps between the gears. If it was me I'd go with the 6-speed.
Both. A small driving gear and a large driven gear is a force multiplier. Whilst a large driving gear and a small driven gear is a speed multiplier
1st connect the electricity, 4 straight wires, it's easy. Then Attach the long gear belt to the already spinning large gear. Add the small gear to the end of the belt. Attach the large gear on top of the small gear just placed. Attach the short gear belt between the new large gear and the small red existing gear. Good luck.
Fox Evolution have a range of biking gear. They offer products like bikes, lycra bike suits, knee paddings, bike parts such as suspensions and wheels.
I have no idea what you mean by "gear bike", so the question can't be answered.
door knobs, screw drivers, clock,bike, wheels, cars,
There are two sizes of ring gears on small block chevies. You probably have the starter for the large ring gear but need the starter for the small ring gear.
Top Gear Hyper Bike happened in 2000.
13.5 revolutions
A small flywheel has 153 ring gear teeth, a large flywheel has 168 teeth on the ring gear, small one measures 12 3/4" across and large measures 14" across.