Author Topic: B35/2 1935 brake light switch  (Read 787 times)

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Jeff

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B35/2 1935 brake light switch
« on: 22 January, 2024, 18:06:49 »
Hi all,

I am fitting a brake light to my B35/2 1935 and realise that it never had one originally fitted, but would like an age related BSA switch type to fit. Has anyone any ideas of a switch that might look right for the 1935 models?
Regards
Jeff

Dripfedfloor

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Re: B35/2 1935 brake light switch
« Reply #1 on: 27 January, 2024, 15:05:22 »
I don't think there were brake lamp switches pre-war. Certainly the Lucas Master Catalogue (covers motorcycles 1936-1957) I have only shows them being fitted from 1951 onwards. I don't think any of those featured in this catalogue would look right for a pre war bike. Lucas part numbers shown are 31281, 31383, 31688, 031445 and 031610. Have a look and see what you think, most have been remade as replica parts.

Ian C

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Re: B35/2 1935 brake light switch
« Reply #2 on: 27 January, 2024, 16:00:36 »
I made bracketry and a better spring attachment for a Lucas switch for my 1940 WM20.

militaryron

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Re: B35/2 1935 brake light switch
« Reply #3 on: 27 January, 2024, 19:17:15 »
Yes no brake lights back then. There were only single filament tail light bulbs. You had to flap your arm up and down as a warning that you were slowing or stopping.  Like Ian I fitted a similar switch to my WM20 and WB30 but managed to hide them under the pannier frame.

I've also adopted a procedure to use a tail lamp and stop lamp through a single filament bulb with a resistor in line.  Ron

Jeff

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Re: B35/2 1935 brake light switch
« Reply #4 on: 01 February, 2024, 22:55:16 »
Thanks for replies.
Thought the same but good ideas with bracketry and trying to hide it as much as possible.
Cheers
Jeff

Steve.S

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Re: B35/2 1935 brake light switch
« Reply #5 on: 19 March, 2024, 20:42:20 »
Bit late, but I've just discovered a Durite switch Part No. 0-579-51. It's really very small, and has a rubber cover to hide the terminals. Have a look.

Y13 Alan G

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Re: B35/2 1935 brake light switch
« Reply #6 on: 20 March, 2024, 13:13:52 »
Re brake lights. Up until the 30th of March 1935 brake lights were not compulsory and were often not fitted to vehicles. From the 31st March 1935 brake lights became compulsory on all new vehicles. So if your bike was registered before 31st March 1935 a brake light is not compulsory. However, it is obviously safer to have one.

Dripfedfloor

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Re: B35/2 1935 brake light switch
« Reply #7 on: 23 March, 2024, 10:21:22 »
Re brake lights. Up until the 30th of March 1935 brake lights were not compulsory and were often not fitted to vehicles. From the 31st March 1935 brake lights became compulsory on all new vehicles. So if your bike was registered before 31st March 1935 a brake light is not compulsory. However, it is obviously safer to have one.

That's incorrect. The act that came into force in 1935 only required that a brake light, if fitted, had to work. They didn't become compulsory until the 1953 Road Traffic Lighting Act which came into force in October 1954. This act also required a reflector to be fitted. A number of Austin A30/A35 had to be recalled to have brake lights fitted so I've read. There were probably others recalled to correct this as well.

As I've mentioned, the Lucas Master Parts List does NOT show brake light switches being made prior to 1951. In the vehicle fitment section there are clear references to older lamps (MT110/MT210/MT211) being used post war as late as 1950. These lamps are single filament bulbs and do not have a brake lamp facility. As an example this list shows my 1947 Triumph Speed Twin as having an MT110 tail lamp. No brake switch is listed for it....