Yuichi Yoshizawa is a rare custom builder that can conquer multiple styles, while still giving each build an organic and immediately recognizable feel. Together with his right-hand man, Yoshikazu Ueda, he runs the Custom Works Zon workshop in Japan’s Shiga Prefecture. Their work is clean, functional and artistic?highlighting the base of each machine, but also transforming it into something completely new.
This Harley-Davidson shovelhead just won the ‘Best of Show’ award at the recent ‘Mooneyes‘ Yokohama Hot Rod Custom Show. It’s a perfect example of how wildly different and creative the bikes from CW Zon can be, while still maintaining standards high enough to win gold in one of the world?s greatest custom shows.
The devil truly is in the details, but too much attention to detail can muddy the overall form and initial impact of a build. That’s not the case here.
The bike?s frame is made entirely of 7N01 aluminum, an alloy developed in Japan and known for its light weight and hight tensile strength, often found in aircraft construction. In fact, the majority of this bike, spare the engine and obvious pieces like the tires, were all handmade in Zon?s shop.

One of the most stunning details on this shovelhead is the seat and tail section, which also doubles as the bike?s oil tank, with braided stainless steel lines leading down to the engine. Of course, this tail section, like the gas tank and Zon?s signature-style girder fork, we...