Hello,
I am confused about speedo drive suitable for my bike. According parts list 1963/64, in 64, for all the range except 350 Comp and 500 CS part number is 022888. My speedo drive, in very good order is stamped BG 5330/168 - Ratio 15/12°. Part number is the same for MPH or KPH speedo heads. When I bought my bike it had a Veglia speedo, so I got a Smiths Magnetic, fully reconditionned : SSM 5001/04A 1000 - (0/190 KPH).
I have been in touch with A. Gagg & Sons for a suitable gearbox tacho drive (solved) and asked them about compatibility of my speedo and my speedo drive. They said me the ratio must be 2/1, and they offer a Triumph made speedo drive.
Could someone tell me what are the Smiths's original ref number for the 022888 item ?
Is my speedo head O.K. for the year and make ?
I am really confused, as I don't want to swap a good original part for a replica or one of an other brand.
Kind regards. J.N.
1964-on speedo drive
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- dave16mct
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Re: 1964-on speedo drive
In the archives:
http://archives.jampot.dk/technical/Spe ... t_1965.pdf
It's hard to read but it looks like BG 5330/257
Dave
http://archives.jampot.dk/technical/Spe ... t_1965.pdf
It's hard to read but it looks like BG 5330/257
Dave
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Re: 1964-on speedo drive
Hi.
The speedo head no for a 1965 G12 CSR is SSM.3002/00A for mph and SSM.3002/01A for kph. I think the gearbox should be BG 5330/257, text is a bit fuzzy.
Hope that helps.
Harry
The speedo head no for a 1965 G12 CSR is SSM.3002/00A for mph and SSM.3002/01A for kph. I think the gearbox should be BG 5330/257, text is a bit fuzzy.
Hope that helps.
Harry
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Re: 1964-on speedo drive
Hi Dave & Harry,
thank you for your replies.
One good thing : my tacho, 3003/00 is the right one.
My speedo is SSM 5001 instead of 3002. But il looks exactly the same, and needs, so, 1000 revolutions per kilometer. The tyre circumference for a 3.50 x 18 is circa 2 mètres (1.9949 !) ie 500 révolutions per kilometer. Obviously the good ratio is 2/1. Now I have to find a BG 5330/257, at least, a 2/1 ratio vith the suitable hole (I think 3/4").
The Smiths's catalogue is very interesting as it states the exact cable length for speedo and tacho for each bike listed.
Kind regards.
J.N.
thank you for your replies.
One good thing : my tacho, 3003/00 is the right one.
My speedo is SSM 5001 instead of 3002. But il looks exactly the same, and needs, so, 1000 revolutions per kilometer. The tyre circumference for a 3.50 x 18 is circa 2 mètres (1.9949 !) ie 500 révolutions per kilometer. Obviously the good ratio is 2/1. Now I have to find a BG 5330/257, at least, a 2/1 ratio vith the suitable hole (I think 3/4").
The Smiths's catalogue is very interesting as it states the exact cable length for speedo and tacho for each bike listed.
Kind regards.
J.N.