KTM 620 Enduro from Machine 1867 with rigid frame

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KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

KTM 620 Enduro from Machine 1867 with rigid frame

KTM 620 Enduro from Machine 1867 with rigid frame

KTM 620 Enduro from Machine 1867 with rigid frame

KTM 620 Enduro from Machine 1867 with rigid frame

8th pictures

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

1/8
Edi has a thing for the motorcycles of the 1920s. So he built his motorcycles as Machine 1867 in this style.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

2/8
He recently planted a KTM 620 single in a self-made, completely unsprung frame.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

3/8
He continues to use the wheels of the KTM 620 Enduro, powdered black, they now turn in the rigid frame.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

4/8
The original KTM brake in the rigid fork is still working at the front.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

5/8
The two-part water cooler made of aluminum goes perfectly with the two-part aluminum tank.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

6/8
The handlebar is bent from a piece of tube and welded to the fork.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

7/8
The KTM single starts with a kicker and is ventilated by an old 40s Dell’Orto.

KTM 620 Enduro from Machine 1867 with rigid frame
Ana Martini Photography

8/8
The saddle is provided with a comfort alibi by two torsion springs.

motorcycles

Enduro

KTM 620 Enduro from Machine 1867 with rigid frame

KTM 620 Bobber in a rigid frame
Single-cylinder enduro in a rigid frame

Edi Buffon is the man behind Machine 1867 and he’s addicted to 1920s motorcycles. An old ace inspires him to plant a KTM enduro stew in a rigid frame.


Jens Kratschmar

05/05/2021

The 1920s were, shall we say, eventful when it came to American motorcycle construction. Next Harley-Davidson There are almost innumerable manufacturers on the market. Including Henderson, A.C.E, Excelsior and Indian. The connoisseur now notices that the models of the four named are largely the same constructions. What they all had in common was the rigid frame made of tube, the split tank with exposed top tube and the jumper fork. And of course the designer: William C. Henderson, who – with the exception of Excelsior – gave his machines the characteristic, longitudinally installed four-cylinder in-line. In its top form, it delivers 40 hp from 1,265 cubic meters. Performance that the KTM stew easily from its half as many 625 cubic meters shakes and packs another 10 perde on top. What these two engines have in common becomes apparent when you look at the KTM Bobber from Machine 1867 clear.

Rigid frame connects

Edi is inspired by the style of the 1920s and designs the cheaply acquired KTM a new frame that is supposed to accommodate the engine and wheels of the Donor 620 Enduro. Another requirement for yourself is: a two-part tank, the top tube should remain visible. And since the planned saddle offers too much comfort, a rigid fork like the board trackers used to have. 65 degrees steering head angle and 1,500 millimeters wheelbase sound quite modern. The brake system on the KTM front wheel can also have a similar attribute: Edi takes over the individual disc unchanged, as he has to recapture the 50 hp. At the rear, it does without a mechanical delay device on the likewise original KTM rim, which, like its sister, is powder-coated in black and covered with classically drawn tires.

KTM with two tanks

Edi would like to put a two-part tank under the top tube of the rigid frame, just like on his model machines. He forms two bubbles out of aluminum and uses the left one as a reservoir for the fuel. The right bladder – previously filled with oil in this way – now carries the minimalist on-board electronics of the Kickstarter KTM.

KTM 620 Enduro from Machine 1867 with rigid frame

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Water cooler challenges

Edi faces an extremely modern challenge in the form of the water cooler that is urgently needed at KTM. Without it, the high-density power plant will not run very long. Two bare aluminum radiators solve the problem by simply screwing them to the frame by Edi and they harmonize surprisingly well with the aluminum tank.

Comfort like a dream

Not as it sounds: You dream of comfort on the KTM Bobber, because there is none. The saddle, which is also handmade, has two tight torsion springs, which means that they only work with a real load due to twisting. The vertical strut between the lower and upper bars, like the saddle bracket, should also prevent the start of any natural springing of the metal. One consolation: The rather jerky KTM single should stop every hint of limbs falling asleep with his vibrations. Or maybe rather favor it?

opinion poll

What do you think of custom conversions?

Voted 3674 times

Many are beautiful, but also impassable.

Better to leave it in its original condition.

Conclusion

The essence of the motorcycle: engine and wheels. Nothing comfort, nothing weather protection, nothing undercarriage, just a touch of brakes. Great. Welding and pipe bending should be possible.

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