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I'm sure this is a very common question, but I need to remove the pedals and crank from a CCM mountain bike frame - however, the pedals have no obvious bolts - the pedal arms simply bend 90 degrees into the crank. Im sure this bike was cheap enough that it wasn't designed to be disassembled, but at this point I'm more curious than anything else.

Is this a special tool required?

enter image description here

Crankset

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  • if the pedals won’t come off then it would seem to make crank removal more difficult. Can you include some pics of both pedals, but particularly the left one?
    – Swifty
    Mar 22 '19 at 9:36
  • When you say that the pedals have no obvious bolts, do you mean the cranks? The pedals are just the flat things you put your feet on; the cranks are the rods that connect those to the bottom bracket. Mar 22 '19 at 13:44
  • If you look carefully at the pedals, where the pedal's shaft screws into the crank arm there is a flattened section of the shaft. A common open-end wrench (though hard to guess what size) will fit this flattened area and allow the pedals to be unscrewed. But note that one of the pedals is threaded "backwards" -- the left pedal is "backwards", so you turn it clockwise to loosen it. The right pedal is "normal", so you turn it counter-clockwise to loosen. Mar 22 '19 at 19:36
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Welcome to Stack Exchange. You are dealing with a one piece crankset. This Park Tool video shows the viewer how to get this done. More common tools to assist in this job is an adjustable wrench ("crescent wrench" is a specific brand and type of adjustable wrench but that phrase has morphed into a synonym for adjustable wrench). A flat bladed screw driver. A hammer. Needle nose pliers. In the video, the gentleman uses a special bicycle wrench to remove that ring (it's a threaded cone nut). In your pic, you've got the hex lock nut loose. The keyed washer remains in place and partially covers this cone nut. Note the slots in this piece. You'll have to figure out a way to engage these slots so you can torque this piece loose and unthread it completely. You can use the screwdriver as a punch by positioning the blade in one of the slots and tangent to the ring. Use the hammer to tap on the screw driver's handle so that you can "break loose" the cone nut's threads. Once it breaks loose and starts to turn (to the RIGHT---see next sentence), you can come in with your needle nose pliers, engage both slots and continue to loosen until you can use your fingers to complete the removal. Try engaging the slots with the pliers and attempt removal first. These cone nuts aren't installed with a great amount of torquue, but time and corrosion may have frozen it in place and it may require a little "persuasion" to get moving. Make sure the keyed washer is off before all this. PLEASE NOTE: on this left side of the bike the pedal, locknut and and cone nut are LEFT HAND threads so to remove, one turns them CLOCKWISE.

In your question, your description of the pedal is a bit confusing. Typically the pedal will thread into a hole at the end of the crank arm. Often its a 1/2 inch spindle on these types of cranks but could be 9/16". (Metric equivalents are 13 and 15mm respectively). There are wrench flats on the end of the pedal spindle where it joins the crank. Sometimes the pedal is threaded and torqued tight by the use of a hex key placed in the hole found a the end of the pedal. If you dont see any wrench flats on the outside, look to the inside--the end of the pedal spindle where it comes thru the crank arm for this hex-key slot. Your pic just cuts off a view of this on your right pedal.

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This type is known as Ashtabula or Fauber crank. The name should find many detailed instructions. Both cranks are made of a single piece of metal. To remove them, first remove bearing cones from both sides of the crank and finally thread one crank arm through the bottom bracket.

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    Of course you have to remove one of the pedals to get the crank all the way out. Mar 22 '19 at 12:10
  • The question reads like the asker thinks cranks is called "pedal arm".
    – ojs
    Mar 22 '19 at 13:08
  • For sure, a big part of my problem is that without knowing the correct terminology it was difficult to search - everything I could find showed me plenty of accessible nuts and bolts.
    – Toby
    Mar 22 '19 at 13:49
  • Today I learned the name "Fauber Crank"
    – Criggie
    Mar 23 '19 at 5:47

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