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.
You measure it. A ruler and a caliper are useful.
No, only the one that was made for it.
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?
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.
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.
They are either talking about the dance wich was made for the song "Crank 'dat Superman" or the trick often performed in BMX.
for me it means that my crank arm bolt is coming lose, so take out you Alan wrench and tighten them
i would assume you have cranks with a built in sprocket, if this is the case, you can't
They are either talking about the dance wich was made for the song "Crank 'dat Superman" or the trick often performed in BMX.
On the most common bicycles the bottom bracket is the bearing assembly that the crank arms and the pedals turn in.