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  1. Actually a combination of the last 2 comments. Heat it with a torch, then put some grips on it. Or use an open wrench with a pipe to get more leverage.

    Edit: and give it a couple good knocks with a hammer too.

  2. Prestigious-Fig-5513 on

    Make sure youre going in the correct direction.

    Bounce on the wrench repeatedly.

    Put the bike on its side and try to pool wd40, or something better, so it must drip through, repeat on the reverse side.

    Hot/cold with a heat gun, and dry ice or CO2 canisters

    Make sure youre going in the correct direction, and try a longer wrench or pipe extension.

  3. Can you get a pedal wrench on it? Looks like the flats are pretty rounded off so maybe you can get a bite on it with a big pipe wrench. Once you find a tool that you can get tightly on it , with bike on the floor get that pedal at 9:00, put your foot on the opposite side pedal and pull upward , counterclockwise, on the wrench from the 3:00 position to the 12:00 position .

  4. It’s hard to tell in the picture, can you get a wrench on it or is it rounded?

    If so, then I would try hammering the wrench. Or if you have a pipe laying around, then put it over the wrench to give you more torque to break it loose.

    I probably didn’t explain that last part well so here’s a picture. They’re putting it over a ratchet but you might be able to do the same with a wrench. It effectively extends the handle giving more leverage.

    https://cdn-ildnbfg.nitrocdn.com/ttTpcHcSBtzGQIaZIYwmqkkNEiHkugKe/assets/images/optimized/rev-c06d060/photos.motoiq.com/MotoIQ/Tech/Wrench/i-5ss5gL6/0/L/DSC_1038-L.jpg

  5. Agitated_Duck_4873 on

    get something stronger than wd-40 like liquid wrench. use a breaker bar or slip a long piper over your wrench to add leverage

  6. I think everyone is overlooking the easiest solution. This is a one piece crank, they are fairly cheap new. But a lot of times they can be free through cannibalism

  7. Is this the right or the left pedal? Remember that one side is threaded clockwise and the other counterclockwise.
    Could it be that you were just trying to turn it the wrong way?

  8. First mistake is using wd40 it’s not good for anything that tight use PB Blaster it might help otherwise heat is your best friend! You might be able to get 2 nuts with the thread on the end grab 2 thick ones put one on as far as it will go then the next one. Hold the first with a wrench and tighten the second as far as it will go . With the two jammed together you might be able to use the one in the back to turn the shaft after applying heat to the crank arm.

  9. uniquecleverusername on

    Take the crank off the bike. Put the pedal axle in a vice. Use the whole assembly as a lever and turn it off.

    If it still won’t budge, use 1. an adjustable wrench or 2. large, deep socket capturing the other side on an extension or 3. a pipe to get extra length/leverage and try again

    2 isn’t really how sockets are supposed to work, so wear safety glasses (for all of this, really), or maybe don’t do that one.

  10. pedals and threaded bottom brackets have one side reverse threaded. when using a wrench on these components, push the wrench to the rear of the bike to loosen, towards the front to tighten. ON BOTH SIDES

  11. Infinite-Cobbler-466 on

    Use better lube (Kroil). Note right side is right threaded and left side is reverse (left threaded). Use some big ass pipe to get extra leverage. But be certain you’re turning the correct direction (Google it). You’re probably trying wrong direction.

  12. Zealousideal-Job-978 on

    Make sure you’re turning the right way, then use a pipe wrench with a long handle to turn it out

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