I have an old Specialized Mountain Bike that I'm stripping down and painting. I need to remove the crank and gears to get a clean paint. I see that there are a couple crank pullers to choose from. I don't want to buy the wrong one and I was wondering what to look for to decipher which one that I need. Please help. The bike is from the 90's. It's my first full teardown of a bike. It's nerve wracking and exciting at the same time. Also, when I'm putting it back together, is there anything I should update while I have the chance to do so such as the brake/shifter cables, chain etc? Being a newbie I need to call upon the bikesperts.