OK, then it is an 84+ . If all original and in excellent condition $300 will not be a silly number. These (most of the Raleigh USA models) were built with a variety of components, mostly Raleigh pantographed, since the catalog specifications were extremely vague (e.g. "aluminum crankset 52/42".) Raleigh 555 SL is probably Tange #2 based on weight, but this has not been verified and Huffy (the Raleigh USA distributor) was extremely tight lipped about those Raleigh-badged frames.