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"Needed" isn't a suitable word. Any tooth count will work, and only rider experience can say which will work best for him/her.
20T is fairly small, so I'd recommend a small freewheel too, to get any kind of speed out of the bike.
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∙ 13y ago
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Will a 16 tooth free wheel and 28 tooth sprocket work?
no it will be to easy to pedal
What is a singal speed back sprocket?
Each little piece that settles between the chain link is called a tooth, so consider the teeth on it as a sprocket. There are fixed gear or a free types, both connect to the rear hub on the wheel.
What size free wheel do you need for a 28t sprocket?
It's much more about the hub than it is about the wheel, and fortunately the threading on freewheel hubs is fairly consistent. Simply buy a freewheel that has a 28t sprocket in there and you should be good to go. Freewheels are just about "never" disassembled, but ridden as a unit till they're worn out.
If you want a 25 tooth sprocket on your bike and you have a free wheel driver do you need a new rim?
you never need a new rim its only the hub you change
How do I free a stuck trailer wheel?
Assuming that the wheel does not have a stuck brake then the wheel bearing is froze. The wheel might break free by rocking the trailer front and back but probably the wheel will have to be removed and the bearing will need to be replaced.
What is the reason for excessive lateral free play in the front wheel?
Worn steering components
Where can you get a free copy of 99 Kia Sephia repair manual?
how do i change the front wheel studs
Where are simple gears used?
An example of simple gears is the chain, chain-wheel and free-wheel sprocket as used on a single geared bicycle. More complicated gearing is the modern bicycle's derailleur system of multiply chain-wheels, a cluster of sprockets, a chain, and gear changer mechanism.
The axel bushings on your MTD snowblower 5hp 6 speed 24 ride out of the body axel seems too long What is needed?
Your free wheel pin is in the wrong location. Remove the free wheel pin, move the wheel inwards and replace the pin in the proper position
Why would a 2004 ford free star van whine loudly while driving?
If from the front end and tends to do it more as you are traveling faster it is you front wheel bearings.
How do you remove front wheel rotor?
You usually have to take off the brake caliper, then the caliper mounting bracket to free the rotor.
What are the function of the free wheeling on 4wd car?
free wheeling on a 4x4 means that the front wheels,when not locked or engaged in 4 wheel drive,will roll like a 2 wheel drive car this means less wear and tear on parts
