Going semi-muscle on this, with mini apes from a '79 Junior Sting-Ray and NOS repop Schwinn Springer from the '90s, as the OE fork is twisted quite badly. Keeping a bunch of the OE parts in it, but especially the chain guard. On a bike ride last year some OWG tried telling me the Speedster has always been a diamond frame. It'll be my community bike ride steed for 2022.
The Speedster was a cantilever frame from its first year (1959) until 1961. There were no Speedsters in the 1962 catalog. When they reappeared in the 1963 catalog as 26" models only they had the camelback frame that was later used as the basis for the Stingray Fastback.
in 1965 24" and 20" models were added. The camelback frame was used until 1970. There were no 20" models made after 1967, probably because of the Fastback Stingrays
There were no Speedsters built in 1971, and when they reappeared in 1972 as a 26" bike only, and used the diamond frame. In 1973, the 20" model reemerged using the camelback frame still in production for the Fastback.
In 1974, the 24" model appears again as a camelback, probably using up Manta Ray production frames. All other models were unchanged.
In 1975 the 20" Speedster became available with drop bars like a 10 speed but only as a coaster bike. The 20" model was dropped again in 1977.
The Speedsters last models were in the 1978 catalogs as 26" diamond frame and 24" camelback models.
VanDamn that was confusing.