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Depends on if it's the older freewheel type rear hub or the newer cassette style rearl hub. Cassette hubs can take 9 tooth I believe, while the smallest freewheel is 15 or so.
Depends on the hub. A cassette hub will go down to 9T. Standard freewheel is 16T, but there are a few that go to 14 and 15.

they now make 8 tooth cassette hubs and 22 tooth sprockets to work for them. so 22 is the smallest out there so far

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9y ago
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14y ago

Yes. A smaller sprocket will have the rear wheel move more in relation to the cranks than a bigger sprocket. This will make pedalling heavier, but it will also make you go faster, if you're strong enough to keep the cranks turning.

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14y ago

Asking for the best size sprocket is like asking for the best size shoe - you get one that fits you, or in this case - your riding.

Do you want to go faster, but can't spin the cranks any faster? Get a smaller one. Do you feel like it's hard to get the bike moving? Get a bigger one.

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10y ago

Depends.

If you have strength left, but can't turn the pedals any faster, then a smaller sprocket can make you faster.

But if you think you could spin faster, but not any harder, then a bigger sprocket might make you faster.

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13y ago

Asking for the best size sprocket is like asking for the best size shoe - you get one that fits you, or in this case - your riding.

Do you want to go faster, but can't spin the cranks any faster? Get a smaller one. Do you feel like it's hard to get the bike moving? Get a bigger one.

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Q: Does a smaller sprocket make a difference on a bmx?
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If i change the size of a sprocket on a bmx bike will i have to change anything else?

You might have to either lengthen or shorten the chain, depending on if you're getting a bigger or smaller sprocket.


Will a bmx chainring sprocket fit on a mountain bike i have a carrera vulcan and i just want it all single speed and i have a bmx eastern sprocket will it fit?

It will if you have bmx (or bmx style) cranks.


Is it better to have a smaller sprocket on a BMX bike?

First you need to be clear about what you're talking about.In regularBike-speak,sprockets go at the rear, andchainrings/chainwheelsgo at thefront.In BMX-speak, a sprocket goes at the front, and a driver goes at the rear.If you're speaking BMX, the most obvious difference is the size, the tooth count.For the same size driver, a bigger sprocket will make the bike slower off the start, but give it a higher top speed.For the same size driver, a smaller sprocket will make the bike quicker off the start, but give it a lower top speed.If you change the driver to match, start and top speed will remain the same, even with a smaller/bigger sprocket.A small sprocket will increase the ground clearance. Better if you're riding ramps as there's less risk of the sprocket/chain hitting the lip as you drop in.If you're not riding ramps, well, a smaller sprocket is still lighter, which is a kinda-sorta advantage. The downside is that the smaller they get, the faster they wear. And the chain wears too.Changing to a smaller sprocket on the rear will make your bike heavier to pedal. If you're strong enough to keep cranking at the same speed as before, then your bike will be faster.


What happens when you have a small sprocket?

First you need to be clear about what you're talking about.In regular Bike-speak, sprockets go at the rear, and chainrings/chainwheels go at the front.In BMX-speak, a sprocket goes at the front, and a driver goes at the rear.If you're speaking BMX, the most obvious difference is the size, the tooth count.For the same size driver, a bigger sprocket will make the bike slower off the start, but give it a higher top speed.For the same size driver, a smaller sprocket will make the bike quicker off the start, but give it a lower top speed.If you change the driver to match, start and top speed will remain the same, even with a smaller/bigger sprocket. A small sprocket will increase the ground clearance. Better if you're riding ramps as there's less risk of the sprocket/chain hitting the lip as you drop in. If you're not riding ramps, well, a smaller sprocket is still lighter, which is a kinda-sorta advantage. The downside is that the smaller they get, the faster they wear. And the chain wears too.


What is the smallest sort of sprocket you can get for a bmx?

As far a the sprocket in the front goes, i think they make them as small as 22 tooth, and in the back, it is called a freewheel or a driver. Freewheels are generally larger and drivers are smaller. Drivers can go as small as 8 teeth i beleave.


Why is a small sprocket better?

First you need to be clear about what you're talking about.In regular Bike-speak, sprockets go at the rear, and chainrings/chainwheels go at the front.In BMX-speak, a sprocket goes at the front, and a driver goes at the rear.If you're speaking BMX, a small sprocket will increase the ground clearance.Better if you're riding ramps as there's less risk of the sprocket/chain hitting the lip as you drop in.For speed it doesn't matter, as long as you pick a driver with a suitable tooth count.If you're not riding ramps, well, a smaller sprocket is still lighter, which is a kinda-sorta advantage.The downside is that with a smaller sprocket, you will have to use a smaller driver. And the smaller they get, the faster they wear. And the chain wears too.


How do you remove a crank and sprocket on a BMX without the Allen key hole?

i would assume you have cranks with a built in sprocket, if this is the case, you can't


Can you put a 23 tooth sprocket on a mongoose bmx bike?

Not a sprocket only, but you can buy a 23-tooth freewheel that should fit.


How do you fit a bmx sprocket?

the easiest way is to go to your local bike shop


How do you put a 9 tooth back wheel sprocket on a bmx?

change out the hub


What is a freewheel bmx?

There are two different hub designs for BMX, freewheels and freehubs. You need to know what you have if you want to replace the sprocket by the rear wheel.


What is the difference between a smaller front ring and a bigger front ring on a bmx bike?

A bigger front ring will take more strength to turn, but if you are strong enough it will give a greater top speed for the same rate of turn of the pedals than what a smaller ring would. Going to fewer teeth on the rear sprocket will do the same thing.