I had a red SP 370 in the early 80's which my friends named the "Ironing Board"-due to the flat seat/tank arrangement.It was responsible for giving me the worst kick-back of my life,leaving me writhing in the gutter before a couple of pensioners came and helped me up.It resulted in a partially torn tendon and 2 weeks on crutches-they had an issue with the kickstarter. Still, I liked the old girl.