Is a bigger or smaller sprocket better?

Substituting a larger front or smaller rear sprocket lowers the ratio (sometimes called “taller” gearing), resulting in more speed for a given engine rpm. Likewise, a smaller front or larger rear sprocket gives less speed for a given rpm (“shorter” gearing).

What difference does sprocket size make?

Installing a larger countershaft sprocket creates higher gearing, while a larger rear sprocket lowers gearing. Similarly, a smaller front sprocket lowers the gearing while a smaller rear sprocket makes gearing higher.

How do I know what size sprocket to get?

To measure the chain size, if you have just the sprocket, use calipers to measure between the teeth. Measure from center to center of where the chain roller would set between the teeth that will give you the pitch. Once you know the pitch you can determine what chain size you would need.

Does a smaller sprocket make it easier to pedal?

Heres the trick, divide the sprocket teeth by the freewheel teeth. *(The smaller the number is, the faster you’ll have the pedal.)

Does sprocket affect speedometer?

The speedo drive is taken from the gearbox, so the speedo would be out by the percentage change in the gearing. A front sprocket one tooth bigger and rear sprocket two teeth smaller would give 15.75mph per 1000 rpm, an increase of nearly 13%.

How do I choose a sprocket?

The sprocket size is dependent on the driver size, the riders gearing preference and riding preference. A small gearing will make it easy to accelerate but lower the top speed. A larger gearing means the bike is more difficult to pedal initially but has a greater top speed.

Does a bigger rear sprocket make you go faster?

A bigger rear sprocket/ smaller front sprocket will give you an increase in acceleration but decrease your top speed. A smaller rear sprocket/bigger front sprocket will reduce you acceleration but increase the top speed.

Does a bigger sprocket give you more torque?

A larger rear sprocket will reduce top speed but increase rear wheel torque at the same road speed as RPM will increase.

What are the different sprocket sizes?

Sprockets can be sized based on the following characteristics: 1 Outside Diameter (Most Common) 2 Pitch Diameter 3 Caliber Diameter 4 Length Thru Bore More

Is it worth it to change just one sprocket?

If your chain is relatively new, it will not hurt it to change only one sprocket. Considering that a front sprocket is typically only $20-30, I recommend changing it as an inexpensive way to test a new gearing ratio, before you take the plunge and spend the money to change both sprockets and your chain.

What happens if you put a bigger sprocket on a chain?

When using a smaller sprocket, especially on the front, the angle of the chain will change and the chain might start touching the swing arm. When using bigger sprockets, also especially on the front, it is important to check if there is enough room for the sprocket with the chain on it.

How do I use the ‘sprocket diameter graph’?

It is activated by loading your bike, adjusting the sprocket details and loading of the ‘ Sprocket Diameter Graph ‘, using the button below the table called “Top speed in Mph per gear for 49 final drive combinations at M.P.RPM in Custom setup”. This calculates sprocket diameters for both chain drive bikes and belt drive bike.