Schwinn 1971 Sports Tourer Classy!

[Eric Amlie]

Thanks @juvela,
I'm referring to the spacer that Schwinn used to move the triple plateau chainset outwards to improve chainline on the 15 speed bikes.
I'm mostly interested in documenting what Schwinn did.
I took apart the crank assembly from a '62 Superior and measured the spacer to be .068", but it would be nice to have an image of a page in a Schwinn publication that shows it and provides the specs.

 

[juvela]

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the same spacer mentioned in me post is also used to move the drive side out to the right a bit

it is fitted behind the fixed bottom bracket cup

usually the spacers are made to fit a BSC cup so in the case of an Italian threaded shell the spacer must often be cut to fit over the cup

never an issue on a Schwinn product of course

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cannot advise on what may have been employed on a '62 or '63 Superior as they came with an Ashtabula type chainset

me comment above refers to three-piece chainsets

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