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Question:
I am using these pedal extenders (20mm) and weigh 127kg/280lbs.
I had in mind to upgrade to SPD-SL pedals, but anything above the 550 has no wrench flats, which means there is no way to tighten the pedal.
There are some pedal extenders with a hole on the other end for an allen key to go through, however is it reasonable to buy that with my weight? I am getting concerned I will break them mid ride?