My aux. fuel tank holds about 3 gallons. I ordered it through
www.summitracing.com. It's designed for mini-drag racers I think.
If you just want to be able to carry a little extra fuel sometimes (like, on tour) then a system like mine is probably overkill. You'd probably be better off just strapping a 2 gallon gas can onto the luggage rack or passenger seat.
Keep in mind that fuel is heavy - ~6 lbs. per gallon - and that weight can put a lot of stress on a luggage rack. I broke my first luggage rack design and had to come up with the much more robust rack you see in my pictures. When that weight sits out there like that it will vibrate, and if the rack isn't adequately braces the vibration will break it eventually. The Ventura rack, for example, probably would not be good for carrying fuel. I also remember reading about people who broke the Triumph factory accessory luggage rack under the weight of a GIVI trunk, which is why I did not bother buying the OEM unit.
I really don't know anything about the Renntec rack except what I can see in the pictures. Whether it would support 20+ lbs, I don't know.
For lots of pictures and articles about the racks I built, as well as how I plumbed-in the aux. fuel supply, visit:
http://www.theunderdahls.com/fuelcell.php
There you can see my initial design which failed, and the changes I incorporated into the second improved design. I have about 10k miles on the new rack now and it appears to be a sound design. I have actually thought about moving up to a 4 gallon fuel tank, but I'm concerned about what leverage might do to the OEM subframe. I think I'm already well beyond what Triumph's engineers had in mind for this bike :wink:
Linear Mode
