A50CC Piston Puzzle

[berniej]

I'm just starting to investigate the crates of parts that will hopefully become an A50CC road bike and I'm not sure which pistons are fitted.
I'm pretty sure the part number stamped on the crowns is 68-0506.

Image below is from my parts book, so which pistons do I have please?

Thanks,
Bernie

[DAVE BRADY]

Hi Bernie,

Could it be that the number on the piston is for the piston only as the number in the part book is for 'piston complete' so including rings and gudgeon pin?

Dave.

[berniej]

Hi Dave, I wondered about that as I think I've seen posts from Julian in a similar vein before.

Cheers,
Bernie