Originally Posted by MichaelW

Is the Bike Friday a folder or a take-down transportable bike ?
My LBS has just started stocking Dahon, in addition to Brompton. They look really good, and come with racks.
Bungie-chords will secure most things to racks. A layer of stiff foam (sleeping mat) between rack and trumpet may reduce vibration and shocks.
You may want to consider a lightweight case like
http://www.headcaseuk.com/headcase-b...es.asp#trumpet
and carry it in a messanger bag, shoulder strap or backpack.