New 2... 4 stroke

[CaptainLunatik]

I've had a 2 stroke motorized bike for awhile now and got fed up with always having to fix it and it not being reliable do I'm getting a 4 stroke but I want something with the same power as my 66cc 2 stroke I was going roughly 43 mph and would like we something that matches that or even a little more if possible what size motor should I go with

 

[Vikingimike01]

I think you should get the 80cc predator.