The Michelin City Trekking tire may also be an excellent option and it comes in two widths for those who can't deal with fat tires -- it appears very puncture resistant. 36-87 psi is a fairly wide pressure range when compared to the 45-55 psi range of the Continental tire. But the Continental tire had lugs on the side for off-pavement. Things to consider.

IMO a bike is a great way to carry your GHB.