BEWARE!
This pin is between 3 and 4 mm shorter in length than the oem/stock one. Everywhere i searched said it was compatible and in terms of diameter it is, but not in length. I dont know if it can be used safely that way.
There are two wiseco wrist pins which fit my bike but one of them is shorter in length, the diameter is exactly the same.
S520 = LENGTH: 2.362 in. and OUTSIDE DIAMETER: 20 mm
S553 = LENGTH: 2.185 in. and OUTSIDE DIAMETER: 20 mm
What i'm concerned about is that the S553 being shorter and not reaching the full length of the piston as the OEM does may put more stress/force on the surface which it is in contact with, because the S520 and the stock one being bigger spread the stress through the whole length reducing the amount of stress per square inch. Not sure if im being clear on what my point is and i lack the technical terms. And also as the S553 hasn't got a snug fit it might wobble from side to side i think!?