Yea I found it at a estate sale and thought the sears drive package was a stock option "not knowing to much about vintage bikes" lol. I know it's not factory but it all looks period correct I'm thinking maybe it was on display at a bike shop. I really can't find out alot of information on the 1966 Raleigh chrome bike. Was there alot made? Again I can't find another one for sale so I really have no clue what the value would be on it