Ever wondered where discarded triple clamps, cylinder heads and foot pegs end up when bike builders have declared them no longer fit for purpose? At most garages the large bin in the corner swallows up such components, or if you are lucky enough to have a deal going with the visiting scrap man then you'll at least win some beer tokens in exchange for you rubbish. Not so at Valtoron, they employ a completely different technique. With backgrounds as artists, sculptors and designers the Delgado brothers from Madrid, Spain use a casting process to produce some truly stunning shapes from molten aluminium. Firstly, the unloved and ugly parts are removed form a project bike, leaving the frame, engine and whatever essentials are required to make it work. Aluminium that can be melted down goes into the pot, literally. Meanwhile clay is moulded and sculpted to create the desired form, before being reproduced again in plaster. Once the mould is made and the molten metal cooled, the casting sand is smashed away to leave some of the most incredible shapes, with no English Wheel or planishing hammers in sight. It would appear that the majority of BMW's R NineT waiting list was made up of the world's top bike builders and artisan customisers, such is the torrent of exquisite machinery to break cover over the summer. This is Valtoron's take on the much discussed and lusted after BMW motorcycle for the modern custom era. The seat and fuel tank are one unit with curves and compound angles that would have most panel beaters crying into their leather apron. The relatively rough, sand cast finish has been left to show off the monolithic look. Ram air intakes, crafted using the same process bulge like flexed muscles above the boxer twin motor. The R NineT is delivered with handsome spoked, black rimmed wheels so there's no point fiddling with those. The anti-aircraft cannon exhausts are also stock, time and skills were better spent in bodywork department. Truly fantastic craftsmanship from every angle. Despite the aluminium monocoque being thin and incredibly light, it looks like it has been carved from a solid block of metal. R32 represents the 90th anniversary of BMWs first boxer engine, fitted in the 1932 R32. Nearly a century of development on the same platform really does emphasise that "if it ain't broke, don't try to fix it". The Valtoron cast bronze logo is a suitably fitting finishing touch. To see exactly how the guys utilise a generations old metalworking process have a look at this section of their website. Valtoron's R NineT was displayed at the BMW Motorrad event in Formigal, near Aragon before being shipped to Cologne for the AMD World Championship of Custom Bike Building 2014. Keep an eye on their Facebook page for further news on this build and future creations.