piston size help needed

[fsteward]

him all ive took my piston to a mx shop and im told the piston is 67.46 but i cant find one any where does this size sound right

 

[Larry's Shee]

That would be a sloppy fit for a 67.5mm bore. .54mm clearance

Did they measure the bore also? Odds are if the piston is worn that much the bore is bound to have some wear also.

Brain fart. Better do math, metric/inch conversion, no time myself. sorry