Ok, this will get your non- drive side pedal off for sure.
IF you are going to use this trick, make DAMN sure that you are going to turn the spanner the right way, if you do this the wrong way and tighten it in even more it isn’t going to help much. Remember that left hand pedals have a left hand thread so undo clockwise. Most other threads are right hand and undo anti-clockwise…
If the crank is already off the bike then you can put the spanner on, then prop the spanner-crank-pedal assembly on the ground so it forms a little mound. Provided you have thought it through and propped them the right way up, a good stamp on the top will loosen the pedal off nicely. Note that it is a good idea to think about the floor underneath before doing this. It WILL get ragged.
If your drive side crank has a spider on it, it may be considerably more difficult to remove and I suggest using one of the many methods posted above, most of them have a resonable chance of success.
Ok, this will get your non- drive side pedal off for sure.
IF you are going to use this trick, make DAMN sure that you are going to turn the spanner the right way, if you do this the wrong way and tighten it in even more it isn’t going to help much. Remember that left hand pedals have a left hand thread so undo clockwise. Most other threads are right hand and undo anti-clockwise…
If the crank is already off the bike then you can put the spanner on, then prop the spanner-crank-pedal assembly on the ground so it forms a little mound. Provided you have thought it through and propped them the right way up, a good stamp on the top will loosen the pedal off nicely. Note that it is a good idea to think about the floor underneath before doing this. It WILL get ragged.
If your drive side crank has a spider on it, it may be considerably more difficult to remove and I suggest using one of the many methods posted above, most of them have a resonable chance of success.