Fits the X1, X2, X7/ FS529, X8, C1/ CX15, Z600/ FS509 and other 49cc/44mm, 2-Stroke pocket bikes that use the same engine with the electric start.
Note: This cylinder come in two size 49cc/44mm or 43cc/40mm
Please measure your cylinder size before making your purchase.
Fits bikes with this 43-49cc engine