Thread: Contemplating a Birch Folding Bike Purchase: Wise Investment or Regrettable Decision?
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Old 02-05-24, 05:17 AM
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Jipe
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In the Moulton, its rubber based (Sir Alex Moulton like rubber suspension, he designed the one of the Mini).

Maybe cheaper and more reliable, a torsional spring like in the Brompton chain tensionner.
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