For more than three decades, the recipe for my “ultimate bike” was a rip-snorting, Bultaco 360cc street bike with cast wheels and a front disk brake. Now that I’m in my sixties, … Front number plate addedRead more
Bultaco
SR250 swingarm and engine plates mounted
I’m most of the way back to where I was on Bultakenstein, but now using the new swingarm. First, I got the rear wheel centered in the frame. Here you can see … SR250 swingarm and engine plates mountedRead more
Swingarm #4
The fourth time’s the charm? I am now on my fourth swingarm for Bultakenstein, and I think we finally have a winner. Looking for a path forward on the Bultaco, I considered: … Swingarm #4Read more
Chassis reassembly, and another roadblock
After almost a month of retirement, I was finally able to get back to my project bikes after about a four-month hiatus. I decided to get Bultakenstein’s new Shinko tires mounted. The … Chassis reassembly, and another roadblockRead more
Rear wheel spacers
I made up spacers to center the rear wheel in the new SRX-6 swingarm. I checked and re-checked my measurements, and it’s still off by perhaps 1–1.5 mm. That’s a functionally insignificant … Rear wheel spacersRead more
Refinishing wheels
The horrible corrosion on the newer 18″ GS450S rear wheel prompted me to get both wheels sandblasted. Technically, they were blasted with coal slag media, but in reality there’s little effective difference. … Refinishing wheelsRead more
Swingarm & Rear Wheel
Jumping into my clean-slate revision of this project, the first thing I needed to find was an appropriate swingarm for my Bultaco frame. I needed a twin-shock design with a larger pivot … Swingarm & Rear WheelRead more
Launching Bultakenstein 2.0
So, it’s back to the drawing board. With all my other projects relegated to the storage unit, I was able to get Bultakenstein back to center stage and start tearing it apart. … Launching Bultakenstein 2.0Read more
Re-thinking Bultakenstein
Progress on Bultakenstein had been fairly mired for a while now. I incrementally lost enthusiasm for it. In an attempt to re-energize my motivation for it, I bolted up the “nice” BSA … Re-thinking BultakensteinRead more
Fitting the M-bar
I bought a knockoff Hyde “M-bar” bend handlebar about six years go, but could never use it because the center section is too narrow to fit the handlebar clamps of nearly any … Fitting the M-barRead more