I try to keep my kit as compact as possible so haven't been in the habit of carrying an electric pump, relying on CO2 bottles under the seat to give me enough pressure to get to civilisation, or on mikeS-type travelling companions who carry enough kit to carry out a rebuild/restoration by the side of the road.
However, in recent times I've been travelling solo quite a bit and CO2 bottles are a one-shot affair. Mike's post reminded me I have a quality compact bicycle pump in the garage. It's only about a handspan long and while it would take a lot of pumps to inflate a motorcycle tyre, it's designed to readily achieve the high pressures bicycle tyres run at, so it'll eventually get me out of a scrape.
In fact I have a vague recollection that BMW's of the first half of the last century had a bracket on their frame for a hand pump, but haven't been able to verify this. My pump head clips directly to the Schrader valve stem, which makes the normally convenient 90 degree fitment on BMW's less than ideal, but there's still plenty of room for use on the rear wheel, and just enough at the front. I've never seen or heard of a front tyre puncture anyway - normally it's the front tyre that flicks the road debris to an optimum angle to penetrate the rear. The other end of the pump locks in place for transit.
Good ideas Mike.
When you use the extension on the T50 CruzTool does it clear the tire?
Could you give info on your lithium jump-start battery kit? Thanks, Keith