With the circlip in situ its inside diameter is smaller than the outside dia of the Gudgeon pin to stop it coming out.

I've heard of bore damage caused by circlips coming out but never by the pin coming past the circlip. Sumert not right eh.

1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, Tiger 800 XRx.