well, maybe some of you remembered I asked some questions about building an ultimate some time ago (about the cranks)… well it’s finished now… unfortunatly I couldn’t try it yet because it has been raining since the wheel is finished… anyway, I thought I post a few pics, maybe it’s interesting for some of you… the overall cost for building it was something about 40 Euros I think… (buying a pichler ultimate which looks very similar is about 150 euros) I got an old wheel rim from a bike shop…
well, the middle is wood with blue paint on it… I thought of painting some stars on it because it looks boring this way
the wood is fixed with screws through the spoke holes… then there’s a stable rim band (or whatever “felgenband” is in english ) so that the scews do not damage the inner tube…
I build it together with a friend (actually we made 2 uws)…
pumping it up is actually not harder than a tire on a normal bicycle, why shoud it? you need more air in it but beside that it’s just the same…
well basically its a screw nut which is welded on a large shim (I don’t know whether this is the right word?)… we didn’t had a screw nut (because you need one with a righthand thread and one with a lefthand thread) so we bought a cheap pair of cranks and sawed through it so that we had kind of nut… we drilled holes in the plates and screwed it onto the wood… on the other side we also used a plate for making it more stable (you see it on the third picture…
