Got this frame from Craig Dueck up in Winnipeg when he came to Totfest 2 last year - totally rigid 40 series mobylette. Replaced the front end with non-hydro ebr's, fabbed up a custom seat suspension with gas struts, threw on an AV10 with an air cooled 50cc polini w port and giannelli sport exhaust but kept the stock drive pulley and a small (15mm) carb to keep it streetable for city riding. Hit's mid 50's and gets there damn fast. Great nimble little bike in stop/go traffic!