Very easy . I weigh 175 and my 80 cc gets up to 45 mph with a 36 tooth sprocket and niome flex tail pipe.Yes @ 130 lbs the YD-100 (80cc) will got over 35mph easy.
I have big bones, I’m at 215lbs and my 66cc cruises at 35 fairly easy, hills will slow you some.Very easy . I weigh 175 and my 80 cc gets up to 45 mph with a 36 tooth sprocket and niome flex tail pipe.