Yuck! Note to self ,dont try that again. With peddle cyclists doing 20mph, why shouldnt an e bike under power. Felt wierd and an un natural handicap,not having smooth electric assistance at any speed. The bbs only reaches 21 ish anyway on the flat ,with my 42-13 in PAS 5. Most of the time its under 20.The 17.4 ah usually did 27 miles ,tho i did use PAS 4 alot ,with 5 for hills. I did once get 35miles on PAS 5 all time ,but that was before i de retricted it .Seems higher speeds are the biggest factor in reducing range.Think i may set the bbs to 17mph cut out.