Reddit reviews Park Tool Compact Crank Puller

It appears to be a cartridge bottom bracket (either square taper, Octalink or ISIS) from the image. The only way to tell which one, since there appears to be no information on the internet (I searched), is to pull the cranks and identify, then measure it.

You will need a crank puller and a cartridge BB tool.

Remove the 8mm bolt on each side, then use an ISIS/Octalink-style crank arm puller (or get one that does both ISIS/Octalink and square taper) to remove the arms. Use a Shimano Hollowtech style BB tool (i.e. Park BBT-9) to remove the BB cups. Replacement BB is a Truvativ Howitzer. You'll need to check the chain line number - it should be printed somewhere on the old BB, or you can measure it yourself. It's the distance between the center of the seat tube and the center of the chainring - should be either 51mm or 56mm.

• Yes
  
• Can you even replace just the middle ring? If you have to replace all 3 then it might be cheaper to just get a whole new crankset.
  
• No idea
  
• No idea
  
• I would guess bottom bracket, check out these two guides on how to figure out where sounds are coming from: http://sheldonbrown.com/creaks.html & http://www.jimlangley.net/wrench/keepitquiet.html
  
• That one will work for you, getting the one without the handle like: http://www.amazon.ca/Park-Tool-Compact-Crank-Puller/dp/B0028YUZSS/ref=sr_1_1?ie=UTF8&qid=1396388359 is actually cheaper and easier to use since you can move the wrench to get better mechanical advantage
  
• If it's a Shimano cartridge bottom bracket then that will work. Count the number of notches to be sure it fits.
  
• No idea
  
• Probably not.
  
• Metric wrenches in at least these sizes: 8, 9, 10, 15 and 17. Then whatever additional sizes you need to work on your bike.

Your weight isn't the problem, a poorly installed pedal can easily work itself loose, damaging both itself and the crank, for riders of any size.

The threads on the pedal and crankset are damaged and will need replacing. These aren't difficult jobs but removing the crank (assuming you have a 3 piece set this link should help you find out) will need a special tool you are unlikely to have. Pedals you can do with a regular spanner though you need to remember that the left hand pedal has a left hand thread, this guide explains what to do.

I prefer this one because I can use a socket wrench with it and it takes up less space in the bike tool box.

The creaking can come from a lot of things. If the chainring has a spider, it might be that the bolts need some tightening. It can also be the pedals needing some grease, which was the case for my bike creaking.

To take out your bottom bracket, you need a square taper crank puller and a bottom bracket remover. You can also use Park Tools CCP-22 if you are only going to use square tapered cranks btw. After you get those two tools, make sure you know how to use them by reading Park Tools website or youtubing a 'how-to' video on taking out bottom bracket and crank. I say this because the threadings are reversed on the non-drive side and if you don't know that, you might strip your tool and bike.

If you have those two tools and some bike grease, just reapply grease and re-install them. If I made any mistake, please feel free to correct me. Taking out your cranks and bottom is a dirty job, but a simple one nonetheless.

It's pretty easy, I just swapped out the crank on my S1 after an accident. You'll need a crank puller, adjustable wrench, some grease, and a torque wrench to install the new crank.

That video was super helpful, thanks! I was worried about reverse threading like the pedals have, but the dust caps were just really stuck from age. I was able to remove them and uncover what looks like a square bottom bracket. So I'm gonna grab this tool from amazon to get them off. Does that look right to you?

Crank puller and bottom bracket tool.