Originally Posted by
fietsbob
roughly 4 cubic feet : 24 by 24 by 12..
Palo Alto Cal, CM Wasson the oldest Brompton seller in the US , (who may have retired)
used the Brompton saddle adapter pin and replaced the Bolt with a Quick release
to make popping the saddle off the seat post easy and the saddle angle stays fixed.
Thanks fietsbob, that's useful info.
For all the queries, the reason I'm looking to DIY a case is because I'm trying to come up with something that could be folded somehow to be carried on the rack of the bike. I travel a lot in and out of African countries, so I need something that provides decent protection, that I can tie to the rack and ride to a guest house/backpackers etc.
At the moment I'm thinking of using 3mm ABS, and making two boxes which push into each other. That way I could shrink one of the dimensions by at least a third, so I could make a 60cmx60cmx30cm box which could shrink down to 60cmx60cmx20cm, or if I compress the other dimension it could shrink to 40cmx60cmx30cm.
I'm not sure I could shrink 2 dimensions and still retain strength, so the next thing I need to figure out is what would easily carry on the rear rack. If I can't get the box idea to work, I think I'll go with the recommended two dimpa bags with a sleeping mat between.
Question for all you suitcase purchasers. Do you think you could carry the suitcase on your rear rack?