about > who makes this stuff WHY THIS EXISTSStarted because I got tired of watching old bikes sit in garages waiting for parts that don't exist anymore. I have a mechanical engineering background and got into vintage bikes. Turned out the CAD and modeling skills translate pretty well to reproducing obsolete plastic parts. Now I scan, model, and print parts for bikes from the 60s-80s that would otherwise be parts bikes. My garage currently has a '65 Honda CA95 Benly, a '75 XL175, a '78 XL350, an '81 Express SR, and a Yanmar YM186 tractor. All bought cheap because they were missing something that hadn't been made in 30+ years.
BACKGROUNDMS MECHANICAL ENGINEERING My master's thesis was on computational fluid dynamics. Specifically modeling how particles move through turbulent air in human lungs. Sounds unrelated to motorcycle parts, but the skills transfer: 3D modeling, computational analysis, working backwards from geometry to design. ![]() I also code physics simulations:
NOT JUST CADI also weld, wire, and build things:
KEEPING OLD HONDAS RUNNINGHalf of fixing old bikes is diagnosing electrical problems. Made some videos on testing the common failure points:
Questions? Email jacob.pratt01@outlook.com |






