When the German father-and-son team of Michael and Allen Posenauer launched AMP Motorcycles, it was a way for the two to bond after hours. But although it started out as a hobby, word soon spread?and AMP took on a few commissioned builds.
Paying clients are great, but they also go hand in hand with pesky things like briefs, expectations and deadlines. After a while, the Posenauers were itching to just build something for themselves again, devoid of any external pressure. This crisp Kawasaki Z400 street tracker is the result.

In-house projects are often an excuse to go wild, but that wasn’t the case here. The 1979-model Z400 belongs to Allen, who wanted something stripped-down and light for running around the city on. The simple aesthetic belies the amount of work that went into it though, because there isn’t an inch of this Kawasaki that’s gone untouched. The job involved tearing off as many parts as the guys could get away with, while restoring the rest and sprinkling on a tasteful mix of mods and upgrades. ?Our aim was to only have the essentials on the bike,? explains Allen.

Reliability was a factor too, so the duo treated the engine to an extensive service, complete with new gaskets and seals. It looks good as new now, with a fresh coat of dark grey and polished covers. The carbs were ultrasonically cleaned, serviced, and hooked up to pod filters.
AMP also rewired the bike, swapping the battery for the tiniest possible Lithium-ion unit. It’...