See Retro-Raleighs website,
http://www.retroraleighs.com/superbe.html . They state that the Superbe was essentially the Sports model with the addition of the Dynohub, B66 saddle, rear rack and locking fork. They have some 1967 and 1976 catalogue pictures and info to support the claim. I have 1972 specs that also support this difference. However, I don't see any difference in the pedals. Unfortunately the 1970 catalogue info on the site does not include the Superbe. However, please note the site also says that, "The Superbe
usually came with...", implying that there were years when it may have been equipped differently. I hope this helps. Good luck!