Easy Fit: A Triumph Speed Twin kit from Rennstall Moto

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...