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The long way to the ultimate seat. At first I wanted the motorcycle to be suitable for both solo- and two-seater use. The duo passenger's seatconstruction could be disassembled, but this was never put into practice.
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![](../pictures/30x30.gif) |
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![](../pictures/30x30.gif) |
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![](../pictures/30x30.gif) |
The first design in the 3D-program Form*Z shows two twin spring solo seats. |
![](../pictures/30x30.gif) |
![](../pictures/20x20.gif) |
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A triangular construction carries its passengers. In this design the taillights are located at the rear fender. |
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![](../pictures/20x20.gif) |
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The triangular construction turned out to be obsolete. Solo seats without springs are plainer and better. Unfortunately it looked terrible 'in reality'. |
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![](../pictures/20x20.gif) |
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Things should be more simple, more angular, more spartan. The taillights have now moved from the rear fender to the back of the seats. |
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![](../pictures/20x20.gif) |
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No, two separate seats look too cluttered. |
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![](../pictures/20x20.gif) |
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It's better to merge them into one seat. |
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![](../pictures/20x20.gif) |
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Designed in wood and foam; is it comfortable? |
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![](../pictures/20x20.gif) |
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Subsequently, designing a drivers' seat is far more simple. |
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![](../pictures/20x20.gif) |
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'In the flesh' I kinda liked it too. |
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![](../pictures/20x20.gif) |
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Shape and size of the seats have been specified now, but I still wanted a dual taillight. |
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![](../pictures/20x20.gif) |
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Grind your teeth: the grinder is going in the frame! |
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![](../pictures/20x20.gif) |
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Came up with a new construction here ... |
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![](../pictures/20x20.gif) |
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... and applied it. |
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![](../pictures/20x20.gif) |
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The steel baseplate is covered with 3 cm of foam and has leather upholstery. |
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![](../pictures/20x20.gif) |
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The taillights can be taken off, just like the solo seat. |
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![](../pictures/20x20.gif) |
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Two bars are pushed into the frame instead of the taillights. The two-seater is mounted, as are the taillights. |
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![](../pictures/20x20.gif) |
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The bars carry the wiring for the taillights. |
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![](../pictures/20x20.gif) |
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Just like the solo seat, the two-seater features leather upholstery. |
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![](../pictures/20x20.gif) |
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And this is what it looks like.
As told before the duo passenger's seatconstruction was never put into practice. |
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![](../pictures/20x20.gif) |
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![](../pictures/seat/seat20.jpg) |
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For both taillights first I milled a steel original (far left). A silicon mould has been made out of it (back). Blending 2-component epoxy casting with pigment didn't get me the right brightness and transparancy (middle block). Ultimately I perspex-glued bright-red sheets (block four) and milled them (far right). Each taillight has three light bulbs: two serve as taillight, the third (halogen) serves as brake light and indicator. |
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![](../pictures/20x20.gif) |
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The solo seat is quite comfortable despite its looks ... so not really 'Spartan' enough. |
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![](../pictures/20x20.gif) |
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Stainless steel is a more appropriate material for this bike. This 4mm plate though is not solid enough. |
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![](../pictures/20x20.gif) |
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![](../pictures/seat/seat23.jpg) |
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So I made a 15mm massive version. It weighs more than 4.5 kilo, but this one has the right optical volume. |
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![](../pictures/20x20.gif) |
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A delicate, but important difference; point at the picture... |
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