This is my over-engineered rubber-mount expansion chamber hanger, courtesy of SendCutSend and South Bend: I took a lot of time to locate the hanger bracket to the exhaust in the exact right … Rubber-mounted expansion chamber hangerRead more
Year: 2024
Frame and engine meet
The Benelli Dynamo 65 frame arrived, and I offered the TC300 engine up to it. No big showstoppers so far, though the output shaft is waaay too long. But that two-horsepower engine … Frame and engine meetRead more
The End of the Aermacchi project
A metal scrapper came and picked up the Ducati engine and spare crankcase this evening. I tried advertising the remainder of the HD-Aermacchi as a rolling chassis, but I couldn’t find an … The End of the Aermacchi projectRead more
Frame purchase – Benelli Dynamo
Over the last few months, I did a lot of looking around for a suitable frame, and even considering fabricating one from scratch. Today I settled on this, from a Benelli Dynamo … Frame purchase – Benelli DynamoRead more
What are my engine options?
Now that the Aermacchi–Ducati divorce is final, what options do I have for the chassis going forward? Well, if you look at the frame’s long, squat engine bay, suitable options are limited. … What are my engine options?Read more
Exhaust mock-up
I have worked through the initial issues in adapting the aftermarket Astro expansion chamber to Bultakenstein. The headpipe and main body, originally designed to be held together with springs, had been welded … Exhaust mock-upRead more
Ducati engine removal
Even though it was a struggle to get the Ducati Monster 620 engine into the Aermacchi frame, I did do it. So I know it can come out. Disassembly is the reverse … Ducati engine removalRead more
Yamaha Rear Wheel
I picked up a rear wheel for the Benelli/ATC250R hybrid. It’s from a Yamaha YM2C Big Bear 305 scrambler, but the same wheel and brake was common to a lot of ’60s … Yamaha Rear WheelRead more
Front Brake Woes
Well, it took me about two hours of effort to get the Bridgestone 175 front brake apart, but I was (reasonably) successful. The culprit I had been fighting against was sand. Not … Front Brake WoesRead more
James Sports Captain magazine article
Since the James Sports Captain circa ’61-’62 is my design inspiration for this bike, I ordered a tattered copy of The Motor Cycle from England that had a news article from the … James Sports Captain magazine articleRead more