Join Date: Feb 2009
Location: Suburban Kansas City, MO
Bikes: 08 Spec Sequoia Elite, 98 Spec Hardrock Sport, 04 Spec Stumpjumper, 93 Burley Rock n Roll, 11 Trek Transport
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Just in case this gives you any ideas...
I used to have a Sun Atlas Cargo before I picked up my Trek transport. (The Sun is made to be xtracycle compatible, same dimensions) I made my own wide loaders. Let me see if I can scratch you up any pics...
Yep. Here you go.
Sun Wide Loaders Slideshow by mbrickell | Photobucket
The plastic tubing I used fits the holes in the bike frame almost exactly. In other words, almost the exact outer diameter of factory xtra wide loaders. I got it at a hardware store, it came the perfect length and threaded on both ends. I didn't have to cut it at all, just screwed standard plumbing caps on the ends. The wood is standard fencing plank, cut to length. The parts were cheap, available at any hardware store (HD, Lowes, etc) and I got a surprising number of positive comments on the wood from passers by.
If you could weld some little steel tubing sections on your frame, you could also make your homebrew bike there compatible with the xtracycle standard. That opens up a lot of accessories, assuming you give a hoot.
The beauty of using holes in your frame to put crossbars and wide loaders on, is that if you want to run narrow, you take them off in a minute. If you want wide cargo capability, you slap them on. Also, the cargo weight is nice and low. The lower, the better in my experience.
Check out some pics you can find online of the Sun Atlas Cargo frame (or my pics here). Since they designed it to be a factory one piece xtracycle, they did the frame engineering for you. The bracing on their frame might give you some good ideas of how to go about it as far as a basic design.
Last edited by syncro87; 06-12-14 at 03:01 PM.