What is the factory size piston for a 93 WR250 2stroke?

i need some help on this one.  i cant get a straight answer online lol 

68 mm

68 mm

iv been looking around every were and keep finding 68mm 68.50mm  67.97mm   69mm  CONFUSED !! lol

The stock bore should be 68mm. The piston should be more like 67.97 but may \be listed as 68. Before you actually buy one you need to pull the head/jug and slug..... use calipers and double check what you  have. in the bike.

Big help thanks man.  :thumbsup:

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