Re: newbie reporting for duty
Hi Spike, solid motor choice, running one myself, Grubee makes good motors.
Check your local laws, in Phoenix 48cc is the max to remain legally still a bicycle.
If it is the same there that's OK, since the 48cc and 66cc look identical and top out the same (same RPM's and usually the same sprockets) it is easy to disguise.
The one main difference you will see between the 48 and 66 is the low end.
The 66's get up and go a lot quicker ;-}