Wobblebike

Step 2 Building the link tube

The best bit to construct first is the link tube. This has a headtube at each end, and can be made from the downtube and headtube from the main donor bike, with a second headtube form another bike welded in at the other end. I make the tube about 18-22" long and have one headtube a few degrees shallower angle than the other. If the downtube is about 2" diameter this will do, but if your bike has a slimmer tube, then a double-tube design is needed. In this case, you will need two 'downtube and headtube' bits welded together, or a downtube/headtube and a crossbar/heatube. Difficult to describe, so look at the photos.