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Old 04-16-18, 11:15 AM
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fietsbob 
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1.25" 31.75 mm is a common diameter for folding bike seatposts, it's stiffer as the tube is bigger, and folding bikes have rather long ones.

measure diameter

How Long? Depends on your saddle height, that is generally....

sitting on the saddle, leg straight, with the heel of your foot on the pedal (flat sole shoe, not much heel on shoe,

then you measure that distance... too..



...

Last edited by fietsbob; 04-16-18 at 11:20 AM.
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