when I was sicker and used more assist I was going about 27 on a clear bike path when a roadie drafted me . got a kick out of it when then I turned he kept it up. but now I use my e bike like a regular bike but go faster I try to keep my heart rate in the 130s or higher. so Idont feel good passing others well unless its as a fat e bike with someone hardly or not peddling at all. nothing getting your heart racing and putting out 600 watts to pass them uphill.