Step 4: Racks

Rear Rack

I had to make a stainless steel rear rack because I did not build one onto the frame when I was building it.

Rear disc brake drop outs can be brazed in after you’re finished. Then build a rear rack right onto to the frame, making sure it clears the disc brake.

I have had way too many aluminum racks brake. Use 1/2 to 3/8th inch thick wall (.083" or .095") tubing of 4130 air plane steel. I use square tubes when possible because round tubes are harder to join to round tubes. But the round tubes do bend easier. Thin all tubing may have problems bending.

Flat bar works fine for the front, but angle bars may work better. I have seen one made of 3/4 inch flat bar But I used 1.5 inch by 1/8th inch on mine. But soon discovered that it was not wide enough to keep the box from wobbling side to side.

<p>I wish I had one of these.</p>
<p>I wish some bicycle company like Sun bicycles would make them. But it takes years to get them interested in a new concept. Just look at ow long it took for the Extra-cycle. Now several company make them. Write them letters.</p><p>see more bicycles of the future here <a href="http://commutercycling.blogspot.com/2011/08/ultimate-utility-bike.html" rel="nofollow">http://commutercycling.blogspot.com/2011/08/ultimate-utility-bike.html</a></p><p>and ask these people how much they would charge to build one <a href="http://hpm.catoregon.org/" rel="nofollow">http://hpm.catoregon.org/</a></p><p>I would make them my self, but no one would be willing to pay $3000 for the parts and labor.</p>
<p>I could build the frame for about $800... I will have to do some math.</p>
<p>Looks like about $500 worth of parts plus labor and wheels etc.</p>

About This Instructable




Bio: Read my non-profit blog about 'Utility Cycling Technology' I am the Professor! (Prodromal)
More by Prodromal the professor:How to build an Ergonomic Cycle Truck 
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