If you have access to a blowtorch gently with a small flame heat the pedal shafts at the crank end. Then try to loosen. Repeat again etc. Have never done this with pedals but has always worked on cars and in plumbing. Make sure its a small flame to keep it localised.
If you have access to a blowtorch gently with a small flame heat the pedal shafts at the crank end. Then try to loosen. Repeat again etc. Have never done this with pedals but has always worked on cars and in plumbing. Make sure its a small flame to keep it localised.