Thread: Birdy thread
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Old 08-15-16 | 03:21 PM
  #730  
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bike.gang.uk
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Joined: Jul 2014
Posts: 288
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From: Newcastle upon Tyne, England

Bikes: Brompton H3L, RAF, M3L, Dahon, Giant NRS, GT

Originally Posted by Winfried
I'd like to add a front derailleur to the Brompton and thus need a ring to attach it to the frame.

The seat tube on the Brompton is 38.55mm.

Ridea tells me the following rings for the Birdy won't work on the Brompton: Is the seat tube on the Birdy much bigger/smaller?
Welcome to RIDEA
Welcome to RIDEA

Thank you.
10 Speed Brompton Mods This might give you some ideas.



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