Someone on my off-road tandem enthusiasts list, Double Forte, asked the following question:
Rather than standing up a Web page or cluttering YahooGroups & a bunch of Email accounts with photos and what not, I figured I'd kill two birds with one stone by answering his question and "archiving" my solution for the ages here at BF. So, here tis'....Originally Posted by kb11troy
Yes, like a lot of folks, toting an 8' long tandem around with both wheels attached can be a bit of a pain and, well, so is the removal and reinstallation of a front wheel when you need to use a fork with a 20mm solid axle that bolts in place. I tried the Ultimate workstand but that was overly complex and went the other way buy simply flipping the tandem upside down and balancing it on the saddle tops and handlebars. It worked OK, but was a bit rickety and made a mess of things when the trailhead / parking lot was wet.
Reference the photos below the text in this post, you'll note that I cut a 2" x 4" into three pieces and combined it with a fork mount in such a way that it doubles as both an upright and inverted stand for our off-road tandem. The height of the bar-end holders (the uprights, if you will) was established based on how much rise I needed to get the tandem to rest on the stoker's saddle vs. mine, noting that it provided the more stable configuration vs teetering on my saddle. To prevent the stoker's saddle cover from getting torn up when the tandem is inverted I protect it with some padding held in place by velcro: this was part of a forearm pad from some aero bars that I didn't use. The only trick other than learning how to "flip" your tandem on its rear wheel (note: remove rear fenders before attempting) is putting your foot on the stand as you lower the bars onto it so that it doesn't get knocked over.
The following link will take you to a short video clip that shows how the thing works, going from having the Hurricane QR adapter locked into the fork mount into the inverted position.
Using The Stand
You'll notice that I put my 6mm T-Wrench down on the floor perpendicular to the stoker's saddle before I "flip" the bike. This wrench serves as my "target" for where the stoker's saddle needs to sit so that that tandem's handlebars will fall right into the stand. If you don't do this then you'll find yourself sliding the full weight of the tandem around on the stoker's saddle cover on whatever surface it happens to be sitting and you jockey the bars into the stand. This can be a bad thing in a gravel parking lot.
Note: While I don't use this to hold the tandem upright in the back of the truck during transit, it would probably work just fine for that too so long as the tandem can go straight in and doesn't need to sit caddy-corner with the bars turned... as it does in the back of our Toyota pick-up.
As far as getting the 20mm axle in and out of the fork, that can be a bit of a pain too. To make that a bit easier I took a cut up a plastic squeege (5th photo) into two "wedges" that can be pressed into the fork ends once: 1st - the 20MM axle has been loosened and, 2nd - the two 6M fixing bolts have been removed to relieve some of the tension on the axle without buggering up the aluminum fork ends. The other "trick" is only partially unscrewing the 20MM axles bolt and then pushing on the extended end of the bolt get the axle moving through the drop-outs.
The following link will take you to a short video clip that shows me inserting the wedges into my fork to remove the Hurricane QR adapter. Note that I've already unscrewed the big bolt in the end of the 20MM axle about 90% of the way and also removed the two 6M bolts from each fork leg...
Using The Wedges
Hope this helps....