The Suntour Cyclone MKII front and rear derailleur I initially installed worked flawlessly and allowed for a 34t rear freewheel, however this was an accommodation to me and my current weight and not a completion of the builder’s intent. Most everything else on this bike is Suntour Superbe which reflects my desire to recognize that not only were there master Japanese frame builders but also Japanese components equal to the dominance of Campagnolo in this time period. And so I have replaced the Suntour Cyclone MKII derailleurs with NOS Suntour Superbe front and Suntour Superbe (lightly used) rear derailleur and Suntour Winner Pro 6 sp. 13-24t freewheel (lightly used).