70cc 90cc 100cc difference

[force245]

Sorry in advance if this has been covered in the forum, but I am not used to the VBB and found it a little odd searching for what I need.

What are the difference between the cc motors.. Bores and strokes or what.. And I am just talking stock here not special big bores or big bore de-strokes...

Thanks

[quadnana7]

70--47.6x39.2
90--52x42
100--52x45
Sent you a pm

[redonkulousruntsracing]

Cases and cranks (stroke) for the 70 and 50 are the same. Cases for the 90 and 100 are the same.

[force245]

thank you both for you alls patience and replys..

Nana, I didnt get a pm....?

[quadnana7]

Should have it now

[bulldogfallon]

OEM 70cc bore is 47.mm while most aftermarket are 47.6mm