The first video shows the whole bike, and the entire deraileur mechanism
The second video is a closeup of the main pivot
And the third video is of the main deraileur mechanism itself
Detailing the strip, clean, and reassembly of this bicycle. The bike is a BGA, which stands for Blanchard-Grange Armes. It was made in St Etienne in around 1935. The derailleur and brakes are ”Velectrik” which seems to be the house brand of Blanchard-Grange. The most interesting thing about the bike is the rear deralieur which is operated by a long leaver by the downtube, which in turn is linked to a rod which moves the derailleur CLICK ON THE PHOTOS IN EACH POST TO SEE THEM FULL SIZE.
Friday, September 6, 2013
BGA Velectrik deraileur mechanism
I have cleaned, greased, reassembled, and mounted the deraileur. Here are some videos of how the BGA deraileur works.
The first video shows the whole bike, and the entire deraileur mechanism
The second video is a closeup of the main pivot
And the third video is of the main deraileur mechanism itself
The first video shows the whole bike, and the entire deraileur mechanism
The second video is a closeup of the main pivot
And the third video is of the main deraileur mechanism itself
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