My ideal solution is Peg-Packer. Available in one or two gallon sizes, this looks like a great way to add range without raising the center-of-gravity of an already top-heavy bike. Unfortunately, my budget for goodies is pretty much spent this year. Another, more affordable, option that I found is the Mega-Tube Fuel Combo. This looks like a really nice solution, and it's roughly 1/3 the cost of the Peg-Packer (although, it carries 1/4 the gas, so arguably, the Peg-Packer is the better deal).
However, I've already got several MSR fuel bottles from 11 oz. to 22 oz. for my dual-fuel camping stoves and lanterns. How hard would it be to roll my own Tool/Fuel tube? I went to my local Lowe's to find out. Here's what you need to buy, if you want to try it yourself:
- 2 foot length of 3" ABS pipe (my local Lowe's sells them in 2 foot lengths; you can buy a full length pipe and cut to size if you want);
- cap for 3" ABS pipe;
- coupling for 3" ABS pipe;
- screw-top cap for 3" ABS pipe;
- ABS cement.
Edit: I've had the tool tube on the bike for almost a work-week now, and I have found two problems with my design so far. First, by making it large (long) enough to carry two fuel bottles, I have a bit of a problem. If you have two bottles in the tube, retrieving the top bottle is trivial...but what about the bottom bottle? How do you reach a fuel bottle that is halfway down the tube? A three inch diameter tube is too small for my hands to fit inside. To solve this problem, I am thinking about incorporating some kind of leash or strap inside the tube that will either fit under the bottle or through the lid that you can use to pull the bottle out. While carrying a water bottle to work this week, I have used a length of copper wire (it was handy...), but I started using it like a spring until this morning, when it got crushed into the bottom of the tube. Now the copper wire *AND* my water bottle are trapped at the bottom of the tool tube :banghead:
Second, I picked up a 33 oz. MSR fuel bottle at the local outdoors shop since I want the most distance possible with the bike. Unfortunately, the new MSR bottle is about 1/16 inch too wide to fit into the tube. It is so close, but won't quite fit. The ABS tube is stout enough, I am thinking of gluing some sandpaper onto the tapered top of the bottle, then using it to grind away enough width on the tube for the larger size bottle to fit, but I'm not certain it's worth the effort. As is, I can fit a 12 oz. bottle and a 22 oz. bottle into the tube, so maybe I'll just use the tube to carry them, and if I am really worried about range (say on a ride to Deadhorse), I'll strap the 33 oz. bottle to the top of my Pelican cases, giving me almost a half gallon of extra gas.