Gave away a couple of weeks agi two immaculate 1986 Belgian Ludo bikes which since 1990 wed not used but kept in as new condition. Now back biking again on a Winora Yakun Urban. The many hills and gradiants plus potholes here taking on hew meanings as my legs seem so much more capable 32 years on or......is it that Yamaha 250 motor assust and 500 ah battery!!?