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Tanshanomi’s Bikes

  • Benelli 250
  • Retroblaster
  • El Fènix
  • Φ Bultakenstein [Aborted]
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Author: Tanshanomi

Handlebars & controls
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  • Benelli 250

Handlebars & controls

March 11, 2026March 11, 2026

The sun came out between thunderstorms, so I rolled the diesel Benelli out into the driveway for a couple of quick progress photos. I bought a higher handlebar for $30 off Amazon, … Handlebars & controlsRead more

Diesel fuel tank mounted
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  • Benelli 250

Diesel fuel tank mounted

March 10, 2026March 10, 2026

I got the fuel tank mounted. I am going to use the fuel tank that came with the engine. It fits nicely under the seat, behind the engine, and it has the … Diesel fuel tank mountedRead more

Motor mounts complete
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  • Benelli 250

Motor mounts complete

March 5, 2026March 5, 2026

In order to rubber-mount the front of the engine to match the rear, I purchased some vibration-isolating mounting pads, commonly used for electric motors, and air conditioner compressors. The integral M10 studs … Motor mounts completeRead more

Rear motor mount
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  • Benelli 250

Rear motor mount

March 4, 2026March 4, 2026

Given these small, air-cooled diesels’ notorious reputation for excessive vibration, rubber engine mounts are practically a necessity. Fortunately, the Benelli frame has existing rubber foot peg mounting points that I can re-purpose … Rear motor mountRead more

New clubman handlebar
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  • Benelli 250

New clubman handlebar

February 27, 2026February 27, 2026

I couldn’t get over the cobby looks of my adapted mount for the Hyde M-bar. But I wasn’t keen on the drag bar I had, and none of my clip-ons would fit … New clubman handlebarRead more

The Retroblaster goes back to a 2-stroke
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  • Retroblaster

The Retroblaster goes back to a 2-stroke

February 27, 2026February 27, 2026

Since the five-horsepower diesel engine I bought has been reallocated to the Benelli 2C project, the Retroblaster’s KTM frame was suddenly without a suitable engine. It occurred to me that the ATC250 … The Retroblaster goes back to a 2-strokeRead more

Reimagining the Benelli as a diesel bike
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  • Benelli 250

Reimagining the Benelli as a diesel bike

February 25, 2026February 27, 2026

With Bultakenstein well and truly off the docket, I had a chance to think freely about what I wanted to pursue in the workshop. I have decided to forgo the “high concept” … Reimagining the Benelli as a diesel bikeRead more

Bultakenstein is dead.
Posted in
  • Φ Bultakenstein [Aborted]

Bultakenstein is dead.

February 20, 2026February 20, 2026

I have decided to kill Bultakenstein. Finding the old mockup image that prompted my most recent post also prompted a lengthy discussion with my wife. She said, “you don’t seem to be … Bultakenstein is dead.Read more

The original concept image
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  • Φ Bultakenstein [Aborted]

The original concept image

February 17, 2026February 20, 2026

While cleaning out some old document folders on my computer, I stumbled onto my first conceptual visualization for a Bultaco 360 road bike. I created this around 1992 or 1993. Pretty bitchin’, … The original concept imageRead more

Yamaha swingarm swap
Posted in
  • El Fènix

Yamaha swingarm swap

February 14, 2026February 14, 2026

As I noted in my recent Bultakenstein post, the SR250 swingarm I had originally installed in this chassis has been tapped for duty in the Bultaco chassis. However, I was able to … Yamaha swingarm swapRead more

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  • Benelli 250
  • Retroblaster
  • El Fènix
  • Φ Bultakenstein [Aborted]
  • Φ The Bride [Sold]
  • All Projects