T-Mar, yes the back clip rolled over to the non-drive side and i suspect loose clips resulted in some funky cable alignment. Not sure why wired flex became popular (I've always liked its look though on the rear derailleur only). Could you point me to the real? Centurion data base link? I found some material in the bike bag including a coin purse full of coins, bar matches, ticket? stubs? & receipts and the accessories including a Specialized helmet & Zefal pump...so I'm going to do some cross referencing on years as the owner thought early 80's and the serial number indicates likely '81 (if I'm reading it correctly).