Tag Archives: Aermacchi

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Harley-Davidson Aermacchi short track frame

Harley-Davidson Aermacchi motorcycles are very potent flat track racers you could buy from the Harley-Davidson dealers.  They were called CRS (250cc) and ERS (350cc), and had


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Harley-Davidson Aermacchi frame tube sizes

During the process of reverse engineering Aermacchi CRTT, SS, H, early CRS, late CRS and ERS, we kept track of the common tubing sizes used


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Aermacchi CRTT and Paul Brodie modifications

Paul Brodie (http://flashbackfab.com/) designed and made his own CRTT frame a few years ago, and he was kind enough to share his drawings with me.


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1966 Alfa Romeo Giulia – Varese, Italy (Part 5)

The trip to Varese, Italy, is a little bit of a long story, as it includes some repairs and also some wonderful hotels.  We will


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Reverse engineering an Aermacchi CRTT tank

The tank of a Harley-Davidson Aermacchi CRTT is an iconic masterpiece of design. The classic shape of the long rectangular tank with gracefully radiused edges


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Reverse engineering an Aermacchi CRTT frame

Why reverse engineering an Aermacchi CRTT frame?  Well, I had a dream to go to Bonneville and race a CRTT based bike and try to


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H-D Aermacchi 39984-69P, REAR CHAIN ADJUSTER ASSEMBLY Adjuster Body

Perhaps you missed the article on the ‘Threaded Shaft’ for the Harley-Davidson Aermacchi part number/description of ‘39984-69P, REAR CHAIN ADJUSTER ASSEMBLY’?   We are going to


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H-D Aermacchi 39984-69P, Rear Chain Adjuster Assembly Threaded Shaft

What is a ‘39984-69P#Shaft#, REAR CHAIN ADJUSTER ASSEMBLY Threaded Shaft’?  Does this keep you awake at night? The rear axle adjusters of Harley-Davidson / Aermacchi


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H-D Aermacchi 39984-69P, Rear Chain Adjuster Assembly

Rear axle adjusters come in many flavours.  Today we are going to look at the Aermacchi Harley-Davidson adjuster that came on the 350cc street bikes,


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Naming conventions for Aermacchi / Harley-Davidson project

A discussion on naming conventions is a pretty dull topic, but it is vital if you want your project files to be organised.  We are


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