Hello all, I'm a bit confused about chain size. I want to replace a chain on an very old 10 speed, but when I look at chains in stores or online, i'm not sure what to look for. For example, many chains will say they are 6/7/8, 9, or 10 speed. Can someone tell me what that means? At first I though it meant number of rear cogs, but that wouldn't apply to the 10 speed model, would it?
The bike in question for me has 5 in the rear and 2 in the front. Please help! I'm still a noob who's trying to learn as much as i can.