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MoGas
What bikes use(d) the skinny 20.6mm (13/16in.) posts?

Thanks,
Dave
TIM
most aluminum frames...
Greg_Hanna
Many of the Junior, mini, and micro mini Cr Mo frames did as well. These frames also required a special seat post clamp. Remember that the cro mo frames were thinwalled tubing compared to the alum. frames so the smaller inner dia. cro mo tubes were also smaller o.d.
byron
Early Schwinn Scrablers
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