Stroke?

[mydirtkids]

I have a 90CC motor out of a 2002 Polaris Scrambler I am rebuilding for a trailbike. I am going to convert it to L/C, just curious about the stroke.

The connecting rod has 126 stamped on it just not sure what stroke it is. Should it be measured from center of crank to center of wristpin? Guessing it is either a 42 or 45. Thanks

[dericsdad]

They were a 42mm stroke.

[mydirtkids]

Thanks, thats what i was thinking! Ordered a Top end from Maximum RPM. Great people to work with:)