Simson Schwalbe KR 50 and the KR 51 pictured below was East-Germany’s answer to the Italian Vespa and to me is still the ultimate retro scooter. 153,500 KR 51 scooters were produced between 1964 and 1968 before eventually being replaced by a more modern SR50 model, but the KR family lived on till 1986 with…