In building a fixed gear from an old BCA frame, I would like to keep the cost as low as possible on this beginning bike. The stock cranks look in good shape, and I have no desire to pay for new crank arms and a new bottom bracket if all I need is a chainring. I have never done this before, so here are my questions . . .
Is it as simple as buying a chainring in the size I want, meaning, are crankarms universal with fixed gear chainwheels?
In looking at chainwheels it has things such as "Works with 110 or 130 BCD", what does this mean?
How can I go about finding the right size (Meaning what do I measure, etc.)?
Are the bolts attaching the crank arm to the chainring the ones I will use for the new one, or will the new one come with bolts?
If you recomend new cranks and bottom bracket, what combo do you specifically recommend for a cheap price?
And please, I'm learning, and part of learning is figuring out WHERE to look for these specific answers on the internet (Which I did with no luck). So be nice please.