I have fabricated the bracket to accommodate the RockyMounts bike rack. So far I have invested $7.50 for the 18" of 5/8 - 8 ACME Threaded Road, $272.00 RockyMounts Tandem R4 Bike Rack, $4.00 5/8 - 8 ACME Nut (qty 2); $15.62 for 1" OD x .625 ID x 5 LG for Spacer Pipe & 1/4 x 4-1/4 x 15-3/4 plate. $10.00 for 1-1/8 OD x 5/8 ID x 4-1/4 LG Steel Tubing.
This is what it looks like right now...


From the pictures I needed to order an additional bike rack support from RockyMount $10.00. And on the right side tow hook mount I need to add an additional plate to be welded.

Total Invested is $319.12 for a bike rack design that can hold my single or tandem bike.

Mr. Incredible

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Tags: Bike Rack, Mr. Incredible

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Comment by Monty on May 17, 2009 at 5:14pm
I was thinking the same thing. The way I drive that bike rack would look like a deployed pull tab on a coke can before I knew what was happening. It's a really nice deal for focused drivers, though.
Wish I were that handy. Hey, toes, on the other hand, maybe we could learn to ride a unicycle, huh?
Comment by toes on May 17, 2009 at 4:58pm
The protusion on either side past the car looks a little scary to me ... I like to squeeze my smart through small gaps and would worry to forget that I have side "appendages" ... kind of like the roof rack "oh sh*t" effect when you drive into the garage and see the bikes tumbling in your rearview mirror. :-)
Comment by Mark Carlson on May 17, 2009 at 10:09am
The next stage in this little project is to get a force gauge and measure the wind/swaying forces as I drive.

Both bikes hold up well when driving but the tandem does move for and aft. The tandem's sway has not affected the bike rack mounting. The tandem itself is swaying because of the rear tire is on a tangent in the track and the the fork appears to be stable.

I may need to design a fixed bracket (not a strap) to will prevent swaying on the tandem bike. The tandem bike weighs 34 lbs and is 7' 4" long with out front wheel.

The triathlon bike is no problem with this design.
Comment by Bob & Jan on May 17, 2009 at 6:43am
Looks good.

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