Rat Bikes! Pub Bikes Beaters! Frankenbikes!

Vanttera, what did you use for cutting the holes?

I used a hole saw and it butchered the alloy and made terrible mess of it.

Also intrigued, as the one I made had a load of channel sections under the plate to act as structural supports... which I then realised it didn't need most of!

Do you have anything under or just the axle mount supports?

Also, what thickness plate did you use, what process did you use for folding it (never thought of that meself!), and what material did you use for the axle supports?

Wow that is a lot of questions. First of all, I'm from Finland, so English aint my native language. Meaning that I dont know the words/names for all those machines in English, but lets try.

4mm alloy, IIRC 4,5% Mg, so 5345-series or smth. Folded it with this type big machine

Holes made first with another big thing that moves. It doesnt drill, but presses the holes, which makes for nicer edges in the holes. Worked like a charm, but i wanted more and bigger holes, so just a normal handdrill and a proper blade like this

Axle mount supports are made of 2mm edged alloy pipe, which is formed with yet another big machine like this

The ends of the pipe have been pressed together and then drilled.

The platform is only supported by the thingies at the handlebar and then the axle mounts. Seems to work perfectly, carried little brother (94kg) fine, although i wouldnt do that on a regular basis. But im more worried about the axle or fork than the rack.

Hope this helps, and sorry for posting all this in a non-rack-topic.