Birdy Owners .... hot upgrade available
hate to bring this up as it could be viewed as spam. But still want to spread the word.
Birdys are rolling on 18 inch wheels ... and I know a few folks who would like to switch to 20 inchers due to better tire selection and all ....
i found the solution .. V brake extenders ....
they also work on 20 inch Dahons to run 451 wheels
p.s. I also have in stock a front derailleur hanger for the Birdy :-)