Sunday, July 1, 2018

Tandem restoration tidbits: headlight mount


B&M, Busch und Müller EYC
Fender mounted headlight. Modern interpretation of the original.

Our Peugeot Tandem came with a replacement front fender and had lost its original fender mounted headlight in the process. And while I don't really miss the glow of a conventional bulb powered by a bottle generator from a practical point of view, I do like the esthetics of those french fender mounted lights.

Peugeot tandem TM8
Interim solution. The affordable and quite capaple Busch and Müller Eyro
took over until new fenders were purchased, a generator wheel was laced and
a suitable led light selected.
For the creative restoration I was thus looking for a modern solution uniting the original spirit with the performance of modern led lights. Besides the obvious candidates with a classical look (Edelux and IQ-XS), I liked the shape of the EYC which could be taken for a descendant of the aleady modern looking fender mounted lights of the eighties.

Peugeot tandem TM8, B&M EYC
The Busch and Müller is a little gem and fits nicely in the overall esthetics
after some modifications and with an appropriate mount.
And the realization that the upper body shell of the EYC is made from alloy and could be stripped and polished makes it a little gem in my eyes. I felt that the 'EYC' logo was looking too busy and filed it away when stripping the paint. The shell fortunately polished well and came out looking gorgeous.

Fender mount for B&M EYC
Evolution of the light mount from first draft to final shape. I wanted to create
a modern interpretation of those vintage light mounts from folded sheet metal.

What was still lacking is a light and secure mount. There is a commercial solution available from Velo Lumino (here) but I wanted to create a modern interpretation of those vintage light mounts created from folded sheet metal.

B&M, Busch und Müller EYC, fender mount, Gilles Berthoud Fender
Front and back view. The light holder is riveted with 4 mm plain rivets. The
burly edge of the EYC nicely mirrors that of the Gilles Berthoud fender.

The holder is securely mounted to the Gilles Berthoud Fender with 4 mm plain alu rivets, which have a low profile on the underside and won't rattle loose. As much as I like 'french fender cuts' I left the Gilles Berthoud fender untouched as the burly edge of the light nicely mirrors that of the fender.

B&M, Busch und Müller EYC, fender mount, Gilles Berthoud Fender
Front view. In the background the quite efficient Weinmann brakes.
The mounting position turns out perfect, as the light has no chance to cast busy shadows from its vantage point. The illumination of the EYC is very even, and the moderate total output compared to the top of the line models has the benefit that its easier to accommodate to dim objects in the surroundings.

B&M, Busch und Müller EYC, fender mount, Gilles Berthoud Fender


If you would like to receive the pdf pattern for a jigsaw exercise or a dxf for laser cutting, drop me a line (contact).

2 comments:

  1. This, together with your brake cable guide are brilliant simple solutions. It definitely looks like a classic fender mounted light.

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    Replies
    1. Thank you for your kind words. Restoring or building up older bicycles gives interesting insight in the ideas and quality of solutions that were common in the past.

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