Hi Jipe, great post once again about the Birdy. I changed my Pacific Cycles Birdy’s tyres to the Schwalbe Kojak 18 x 1.25, together with the new BB and crank set the riding experience is so much better now. I’m about to change to a new wheel set with hubsmith ceramic bearings hub (specific model for Birdy so there won’t be any problem with the front hub). But for the folding size I’m keeping the 355 18 inch size.

These should conclude my upgrades to the Birdy once and for all.

And yes, the Birdy is much faster than a Brompton.