How did you fit the 21t without hitting thw rear triangle?

I get it, but trust me, it is not sturdy enough for airline flights. You'll be worried the entire trip that your Brompton will be damaged by the guys/gals in baggage handling. Not worth it.

Best bikes

what the heeeel

How do you fix this to a Brompton while cycling?

Great idea. Taiwan is such a great place.

They will visit countries around the world..??... Are they considering visiting countries in South America..??

_What an amazing adventure video enhanced by inspiring music, the excited adventure and beauty, a unique of wonderful scenery along the way are clearly and distinctly explored. Thank you for sharing your insight and expertise with the world._

can this 4 cogs set be installed onto the sturmey archer BWR IGH?