Have done some upgrading/accessorizing on the BD-1. Added fenders, as I had a set on hand and like to use them anyway.

The silver classic I have had the adjustable handlepost with an ahead stem, so swapped the handleposts between the two bikes. All went swimmingly until the fold, the old style handlepost impacts the new frame, so reverted back to stock. Picked up one of those handlebar extenders and it made things much better. While at it added a carbon handlebar, carbon brake levers, and Biocork grips. Now has a very comfortable ride.

After swapping the handleposts, the shifter cable was too short and needed replacement. Had an SRAM X-9 derailleur and trigger shifter on hand so installed them along with an XTR Ti 9 speed cassette.

The ColorPlus pneumatic suspension works very well. No po-going, even standing on the pedals. And I like the wheeled rack, makes it easy to park and maneuver around.

Guess that's enough mucking about for now. The bike rides nice and there's not much left to do, other than a carbon crank set.