What does a bigger sprocket do on a motorcycle?

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 much horsepower does a CBR 125 have?

The Honda engine is a fuel-injected, liquid-cooled 124.7cc single-cylinder and is mounted in a twin spar chassis. The CBR125R produces 12.75 hp at 10,000 rpm to drive its 301-pound dry weight via a 6-speed gearbox fitted with a mechanically-actuated clutch.

What is the front sprocket on a motorcycle called?

Q: What’s the difference between steel and aluminum sprockets? A: Weight mostly, but the steel sprockets generally last longer than the aluminum ones.

How many teeth does a front sprocket have?

A front sprocket with fewer teeth works the chain harder and robs power, as the chain has to curl more to match the smaller diameter. In general, a 14 tooth front sprocket is the smallest advisable, with 13 being used in extreme cases. One thing to watch is clearance between the swingarm and chain.

How do you choose a sprocket for your teeth?

For more bottom end and faster acceleration, use a small countershaft/front sprocket or large rear sprocket. For every 1 tooth that you change on the front sprocket is like changing 3 to 4 teeth on the rear (and that’s true for higher gearing ratios, too).

Is a CBR 125 a good bike?

The Honda CBR 125 R has been a sales sensation. It’s easy to ride, comfortable, gives good fuel economy and, above all, it’s a Honda, so it’s built incredibly strongly. As a 125cc motorbike it’s suitable for learners on L-plates as long as they’ve passed a CBT.

Is Honda CBR 125 small?

CBR’s Little Brother Unlike it’s 600cc and 1000cc big brothers, this little bike is powered by a much smaller 125cc liquid cooled, single cylinder, 4 stroke engine.

Which sprocket is faster?

You can gear up by using a smaller rear sprocket or a larger countershaft/front sprocket. Gearing up adds more speed and decreases the final drive ratio. You can gear down by using a larger rear sprocket or a smaller front sprocket. Gearing down reduces speed and increases the final drive ratio.

Is a smaller sprocket faster?

Gearing ratio refers to the ratio of rear to front sprockets. 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 sprocket is best for speed?

For more top end and faster top speed, use a large countershaft/front sprocket or smaller rear sprocket. This creates a taller gearing ratio that’s best for high speed situations without many tight turns like wide open desert racing.

What does less teeth on a sprocket do?

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).