The pedals on my 10 year old Fuji Absolute 1.0 are worn out so I've bought a nice set of shimano pedals to replace them. Slight problem - I can't get the old ones off. They don't have an Allen type socket on the spindle to provide counter force when trying to twist the standard hex sided part of the screw with a spanner. I've used about feels like half a can of wd40 on both pedals and still they won't budge. Am I going to have to bite the bullet and replace the crankset? Open to any suggestions before I contact my local bike shop on Tuesday (closed Sun/Mon).