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It's a simple math between the engines speed (rpm) v.s. the rear wheels speed (rpm).
The bicycle runs 20km/h where the motorbike runs more than 200km/h
On a bicycle where the engine (You) not exceeds much more than 50rpm do the sprocketsizes need to be opposite arranged to get the bicycle to drive with 20km/h (= 333 meter/minut => about 150rpm of the rearwheel).
In contradiction runs the rearwheeel of the motorbike easily more than 1.600rpm, but this by the help of an engine that often are able to rotate more than 12.000rpm.
To the math comes the fact that the motorcycle engine really isn't that powerfull when it comes to the figure of torque (@ rotating power):
Torque is easiest explained as the weight wich a bicyclist jogs in the pedal with, multiplied with the length of the pedal-arm:
A 80kg heavy bicyclist jogging on a 25cm (=1/4 meter) long pedal produces a torque of 20kg/m wich only the biggest motorbike-engines can match, but helped by the high revolutions on the engine it is able to reduce the rpm's towards the rearwheel, and very practic: the torque rises together with the decent rpm's amking higher speed possible!
The compleate story includes some gears inside the engine, but the explanation to the question is the same whether those details is brought to the table or not.
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Does a bigger sprocket give higher top speed?
A bigger front sprocket gives a higher top speed. A bigger rear sprocket gives a lower top speed. A bigger front sprocket is less torque more top speed, and a bigger rear sprocket is more torque less top speed.
How do you make your scooter go faster uphills?
Swap to a bigger rear sprocket or a smaller front sprocket. It'll lose a little top speed but be stronger uphill.
When your in low gear what sprocket are you using?
It depends on whether you are talking about the front sprocket (the one at the pedals, called a chainring) or the sprocket at the rear derailleur. The lowest gear at the front is the smallest sprocket/chainring. The lowest gear at the rear is the largest sprocket. So if you combine the smallest sprocket at the front with the largest sprocket in the rear you have the lowest gear available on your bike.
Does a bigger rear sprocket make a pocket bike go faster at top end?
typically you want a a smaller sprocket in back and bigger one in front.. bigger one in back with stock in front will cause quicker acceleration small on back and big in front will cause you more speed but if you put a smaller one in back put a bigger one in front
What size front sprocket would go fastest with a thirty tooth rear sprocket?
No way of telling, it depends on how strong or high revving the engine is. Switching to a bigger front sprocket might make the bike faster, but only if the engine is strong enough.
What is the top speed of Honda 400ex with aftermarket rear sprocket?
depends if the sprocket is bigger or smaller than a stock sprocket.
What is the drive chain size for 2003 Honda Shadow Spirit 750 motorcycle?
with a standard 17t front sprocket and a 42t rear sprocket the standard chain size is a 525 ( x-ring or O-ring) 124 link.
Does a bigger rear sprocket on a 2004 gsxr 600 gear up or down?
with a bigger rear sprocket u will be gearing down. therefor u will have better takeoff but lower top speed.
How do you increase the speed of a motorcycle?
You can change the chain sprockets of most motorcycles to get a higher top speed. Reduce the rear sprocket numerically, and/or increase the front sprocket numerically. A higher profile tire will also increase top speed slightly.
What is the purpose of the chain and sprocket in a motorcycle?
To provide power from the motor to the rear wheel in which to make it go
What size sprocket is on the rear of a suzuki bandit 1200s?
The chain is size 530, and the stock gearing is 15/45, meaning that the front sprocket has 15 teeth and the rear sprocket has 45 teeth.
How many teeth on a stock sprocket for a 2005 banshee?
The front sprocket has 14 teeth. the rear has 41 teeth, but on mine i have 13 front and 42 rear its more bottom end performance
