The alt-moto scene is full of enthusiasts that have a measure of good taste, but don’t have the means to build or commission a full-bore custom. So for every top-shelf bike you see here, there’s dozens on the street running a smattering of similar mods?often purchased and installed incrementally.
Because of this, some custom builders have had the good business sense to develop bolt-on kits for particular makes and models. And those kits are even better when they’re made of parts that can be purchased and installed piecemeal, rather than in one big hit.

We’ve already seen great examples from Bike EXIF alumni, like Hookie Co. and Bad Winners. And now the German outfit Rennstall Moto has joined the party, with this razor-sharp package for Triumph’s 1200 cc Speed Twin. It gives the already good-looking and capable roadster just the right amount of racer style, and hangs together so well that it feels almost factory. Rennstall Moto is a collaboration between Philipp Ludwig of Kraftstoffschmiede, and Krzysztof ‘Kris’ Szews from Man & the Machines. The first time they teamed up, they built an outrageous BMW R 1250 RS to compete in the Sultans of Sprint race series. But this time around, they had something more practical in mind.

?The Speed Twin has huge potential in terms of customizing,? says Kris. ?It?s a very nice blank canvas since it?s neutral; not too classic, not too modern, just perfect for adding tons of character in whi...