’71–’73 A65 Export tank? I don’t think it’s the worst idea I’ve had. I tried to scale this accurately in Photoshop and I think this could work well. This metal Bultaco Mercurio … Other tank possibilitiesRead more
Year: 2019
No tank you, Can-Am
I’m giving up on the plastic Can-Am Qualifier fuel tank. I watched every YouTube instructional video, read all the vintage MX forums. I shaved. I sanded. I used heat and the recommended … No tank you, Can-AmRead more
Seat shopping
Shopping for seats, and trying to figure out which will work with my rear loop. I tried to scale and superimpose the frame tubes into the image as accurately as I could. … Seat shoppingRead more
It’s a rolling chassis!
Before work this morning, I was able to sit on it, bounce up and down on the suspension, even roll it down the driveway and do a couple of S-turns. It behaved … It’s a rolling chassis!Read more
Rear wheel alignment
One of the big challenges of this project has been trying to accurately locate of the rear wheel. Fortunately, as far as the frame itself goes, the only truly critical relationships are … Rear wheel alignmentRead more
Crankcase comparison
To help me sort out engine placement in the frame, I bought a left-side crankcase half from an original Aermacchi 350 engine off Ebay. Since I will not not be able to … Crankcase comparisonRead more
Swingarm pivot complete
Here’s the swingarm pivot, completed! The rear engine bosses will attach to these crosstubes; if you look carefully at either end, you can see the rubber mounting blocks Suzuki used on their … Swingarm pivot completeRead more
Ducati Supermono conversions
I have learned that my “supermono conversion” idea has been done successfully before. I was pleased to find this single cylinder Ducati racer. More photos can be found here: https://felkinsr.smugmug.com/Motorcycles. The forum … Ducati Supermono conversionsRead more
Swingarm & motor mount fabrication
I got the 6mm thick outer spacers made up this morning. The engine mounting plates need to be spaced in because of two socket-head screws on the left, as well as to … Swingarm & motor mount fabricationRead more
Fitting the DT swingarm
I’ve got the frame bolted into the jig using the additional fittings, and I’m working on final alignment of the twin-shock swingarm.