I was thinking about adding some fuel capacity now that my trike only gets about 100 miles per tank. I found this link in another forum that looks like they have several good options. My trike, VTX1800 RoadSmith, has fuel injection; so adding another fuel tank seemed overly complicated with vents, return flow and/or additional fuel pumps. This Tube alternative might work, just throw the tube into the trunk or strap it onto the trike and pour up to two gallons into the main tank. Looks like it is a heavy duty aluminum thermos bottle. Here is the link in case anyone else is interested.<br />
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<a href="http://www.tourtank.com/TourTubes.html" target="_blank">Tour Tubes</a><br />
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REOFL