X1's come 43cc stock,,,The head can be upgraded to 49cc..My X1 is now 53ccs............X2 X3,X5,X6,X7,X8,X9,X10 bikes come 49cc...The stock 43cc engine can be modded to more than twice its power aswell with a dremel and some time along with a few parts bought...........Good Luck with itWoW thanks for the quick response.
Thats good to know I was told it was 49cc.
Thanks.