For those of you with a little time on your hands...Could you please explain the difference between gears, sprockets, cassettes, and freewheels to me.
I'm pretty good when it comes to changing derailleurs, brakes, handlebars, stems, wheels, tires, etc.
I can even replace a cassette. I know that your gears or sprockets are lined up and attached together to form a cassette. I know that each gear or sprocket will change your mechanical advantage, in making the wheel turn as you pedal.
I think that's right so far...Right?
Now, what I really, really, really, don't know is...
How do you know which gears to change in order to match up with other gears?
What do the gear ratios have to do with matching front gears with rear gears?
Can you change the sprocket sizes on a cassette in order to change the mechanical advantage?
Thanks in advance guys...