Honey 3.00号(3百号)

3.142 x (bore/2) x (bore/2) x stroke距离=排气量,
或者
3.142 x (bore x bore)/4 x stroke距离=排气量
或者
(3.142 x bore x bore x stroke距离)/4 =排气量
bore和stroke必须换去cm
原装EX5
bore=5.0cm(5.6cm racing)
stroke=4.95cm
(3.142 x 5.0 x 5.0 x 4.95)/4=97.21cc
如果用这个blok的话......
(3.142 x 5.6 x 5.6 x 4.95)/4=
121.93cc