There are two common standards for pedal threads, 9/16 and 1/2.
Probably a 15mm to take off the axle nuts, but it depends on your pegs, and your axles.
Either 15mm or 9/16", or it can take a hex(allen) key at the face of the axle instead. Remember that the left side pedal has a counter-clock thread.
What size wrench do you need to change the front brakes on a 2001 dodge durango?"
3/8" allen wrench.
what size allen wrench do i need to change front brakes on a 2004 dodge grand caravan
15mm six point socket or 15mm wrench
3/8 inch Allen wrench.
3/8
it should be a 10 millimeter
Anywhere from 12mm to 19mm.
9/16
On a bike there's one(or more) front sprocket(s) by the pedals connected by a chain to one(or more) rear sprocket(s) by the rear wheel. As the wheel isn't driven directly by the pedals, and there's usually a difference in size between the front & rear sprocket this constitutes a gear.
3/8"
Use a strap wrench, easier and quicker, and you can use it on any vehicle without having to ask -"what size - - - " The engine oil drain plug size should be 13mm.