Author Topic: The right speedo in the tank  (Read 446 times)

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Offline FAA891

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The right speedo in the tank
« on: July 23, 2020, 09:43:52 pm »
Evening All,

My mate was checking over my C.11 and commented about the speedo in the tank saying that it wasn't original. Its been there as long as I've had it, since the 70's. So my speedo goes up to 120mph. He said that that was a bit optimistic (agreed) and showed me the speedo he has on his wartime Ariel 350, also a Smiths which goes up to 80 mph.
I'm sending a pic of both and I would be grateful to anyone who can throw some light on this.
Cheers,

Pete
Pete M

Online ROB KEMP

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Re: The right speedo in the tank
« Reply #1 on: July 23, 2020, 10:24:40 pm »
i think it should be 80mph but your 120mph speedo is worth double or treble what a 80mph cost .

Online Owen

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Re: The right speedo in the tank
« Reply #2 on: July 24, 2020, 06:27:26 am »
Your bike would have been fitted with one of the following dependant on which country it was going: S/467/9/L for 80 mph or S467/13/L for 130 kph.
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11

Online timsdad

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Re: The right speedo in the tank
« Reply #3 on: July 24, 2020, 06:50:36 am »
Yes, it should be an 80 mph one but there's little difference in the value. Ian  Bartram, and all the other speedo specialists, can convert from one to the other with no problem.


Ray
Just a motorcyclist.

Online donkey

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Re: The right speedo in the tank
« Reply #4 on: July 24, 2020, 08:38:33 am »
I thought the original 80/85 mph speedometers were fetching big money sometimes more than 120 mph ones
donkey.

Online Tman

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Re: The right speedo in the tank
« Reply #5 on: July 24, 2020, 09:33:58 am »
Maybe, but only if the buyers don't realise that it's an easy conversion job for a speedo reconditioner.
Dave Woods (as i recall) used to offer it as part of the service for old speedos.

Offline sidevalve

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Re: The right speedo in the tank
« Reply #6 on: July 24, 2020, 11:46:05 am »
Don't forget BSA were prone to using "what was in the parts bin" on the day. For many small items there doesn't seem to be a definite right or wrong

Online Owen

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Re: The right speedo in the tank
« Reply #7 on: July 24, 2020, 12:16:43 pm »
I would love to know the facts behind the statement  "what was in the parts bin" on the day?
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11

Online BSAc11g

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Re: The right speedo in the tank
« Reply #8 on: July 24, 2020, 12:50:15 pm »
The hard speedos to find are the D shaped one.
Because they were a penny a pound, the Chronometric repairers bought them by the bucket load
And because Vincient owners would pay more for a speedo that a Bantam owner would most got fitted into round cases to the point that D cases are now one of the rarest parts.
In fact the only Bantam ( or C 10L ) part that is more expensive than it's Gold Star equivalent.
Bike Beesa
Trevor

Offline FAA891

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Re: The right speedo in the tank
« Reply #9 on: July 24, 2020, 04:18:25 pm »
Gentlemen, thanks one and all. Pete
Pete M

Offline sidevalve

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Re: The right speedo in the tank
« Reply #10 on: July 24, 2020, 04:38:36 pm »
just going on what I have observed on road tests from the 50's in different magazines - one has one speedo the other bike had a different one [lots of firms seemed to do it with bought in bits] plus an article written [in the 70's] by a retired BSA employee who said they used whatever was available. Some M20's even had 120mph speedo's and the fact that my bsa manuals show both the D shaped and round speedo's for my C12

Online camman3

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Re: The right speedo in the tank
« Reply #11 on: July 24, 2020, 05:22:03 pm »
Triumph switched from Smiths to Verglia...and back again I think  :-\...I do know the T140 came with either.
My '80 American spec T140 had the Verglia's fitted
Graham
1957 C12
In sunny (sometimes) Christchurch, Dorset, UK

Online Tman

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Re: The right speedo in the tank
« Reply #12 on: July 24, 2020, 05:35:10 pm »
The Co-operative fitted Veglias when they were short of money. They weren't termed "Vague-lias" for nothing.. ;)

Online ROB KEMP

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Re: The right speedo in the tank
« Reply #13 on: July 24, 2020, 08:03:51 pm »
MY contribution was based on very recent e bay searching for a speedo for my c11 and 80mph speedos were definately a lot cheaper than 120mph ones but i can see that if your going to buy one from a reconditioner the repair costs would be similar .

Online timsdad

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Re: The right speedo in the tank
« Reply #14 on: July 25, 2020, 08:45:04 am »
I have a few clocks on the shelf that I've had for many years, including brand new, unused, original Smith's magnetic speedo's and rev counters, bought in the '70s, and an unused, NOS  D shaped chronometric with just a mile on the milometer. And there's nothing wrong with magnetic Veglia clocks, I've never had any problems with them on Italian bikes or Triumphs.

They're there 'just in case' but I'm surprised the little D shaped speedo is worth more than sixty quid - they must have gone up a lot in the last couple of years. I swapped a six-spring A10 clutch for it many years ago to help a mate out.


Ray
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