I know this is a long shot but I have an S&S tandem all boxed up in two cases that’s available if anyone needs or wants it for PBP.
We’ve used it for a tour in Italy and France and it was a workhouse.
We also have racks and Ortlib bags if needed.
I also have a travel case for a single bike if someone wants to barrow it.
Only used twice for PBP 2007 & 2011.
Contact me at