A crank (or a crankset) is the thing that sits in the middle of the bicycle, has the chain on it and have the pedals attached to it.
No, only the one that was made for it.
You measure it. A ruler and a caliper are useful.
Yes you can, but take it to a bike shop or someone who knows what they are doing
It depends if you have a 3 piece crank, spokes, brakes.
By crank do you mean sproket? The smallest iv seen is a 22t but there may be smaller, or do you mean 3pc cranks?
The only thing on a BMX regularly called a spindle would be the crank axle. Although I suppose one could use spindle for the pedals and the wheel axles as well.
Usually not. It'll be fast at the start, but a small crank will limit top speed unless you can turn the pedals really fast.
They are either talking about the dance wich was made for the song "Crank 'dat Superman" or the trick often performed in BMX.
They are either talking about the dance wich was made for the song "Crank 'dat Superman" or the trick often performed in BMX.
i would assume you have cranks with a built in sprocket, if this is the case, you can't
It really depends on your height. If your legs are longer, you should use that to your advantage and use the leverage of a longer crank. If you use a longer crank and don't have long legs, you can feel like you're riding a hear or two higher than you actually are, so make sure you don't get cranks that are too long!
Something's loose. Most likely the left crank arm. You also want to make sure ALL fitting's threads are greased.