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BSA numbers #721408
01/07/18 7:28 pm
01/07/18 7:28 pm
Joined: Jan 2018
Posts: 9
United States
M
Mike_G Offline OP
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Mike_G  Offline OP
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M
Joined: Jan 2018
Posts: 9
United States
Just picked up a BSA frame stamped with A50B.5515
Can anyone tell me the year and model?

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Re: BSA numbers [Re: Mike_G] #721411
01/07/18 8:16 pm
01/07/18 8:16 pm
Joined: Dec 2004
Posts: 9,232
Scotland
kommando Offline
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kommando  Offline
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Scotland
Model year 1964, go to britbike.com and then from the BSA info drop-down menu select identification.

Re: BSA numbers [Re: Mike_G] #721412
01/07/18 8:19 pm
01/07/18 8:19 pm
Joined: Feb 2008
Posts: 4,260
New Jersey USA
Tridentman Online content

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Tridentman  Online Content

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Joined: Feb 2008
Posts: 4,260
New Jersey USA
I make it a 1965 BSA A50 500cc twin.
I will leave the model to more knowledgeable BSA guys.
HTH

Re: BSA numbers [Re: Mike_G] #721414
01/07/18 8:37 pm
01/07/18 8:37 pm
Joined: Dec 2004
Posts: 9,232
Scotland
kommando Offline
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kommando  Offline
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Scotland
Yes 65, B50B was used 64 and 65 but 65 from 4001.

Re: BSA numbers [Re: Mike_G] #721417
01/07/18 9:07 pm
01/07/18 9:07 pm
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
S
Shane in Oz Offline
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Shane in Oz  Offline
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S
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
Yep, the number is right for 1965.
The A50B frame prefix was used for all of the sporting unit twins, both 500 and 650.

Re: BSA numbers [Re: Mike_G] #721424
01/07/18 9:48 pm
01/07/18 9:48 pm
Joined: Feb 2008
Posts: 4,260
New Jersey USA
Tridentman Online content

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Tridentman  Online Content

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Posts: 4,260
New Jersey USA
My lists seem to show that for 1965 the A50B frame was only used for 500cc twins.
The 650 twins had frame numbers starting A65------.
You got heat stroke in Oz?---here in New Joooisey it is brass monkey weather.

Re: BSA numbers [Re: Tridentman] #721435
01/07/18 11:17 pm
01/07/18 11:17 pm
Joined: Feb 2011
Posts: 3,425
Orygone
Boomer Online content

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Orygone
Originally Posted by Tridentman
My lists seem to show that for 1965 the A50B frame was only used for 500cc twins.
The 650 twins had frame numbers starting A65------.
You got heat stroke in Oz?---here in New Joooisey it is brass monkey weather.



Richard, I think you're looking at the engine numbers. Frames didn't to A65 until late '66 when they started matching engine and frame numbers.


Bill B...


Boomer
Re: BSA numbers [Re: Tridentman] #721444
01/08/18 12:21 am
01/08/18 12:21 am
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
S
Shane in Oz Offline
BritBike Forum member
Shane in Oz  Offline
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S
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
Originally Posted by Tridentman
My lists seem to show that for 1965 the A50B frame was only used for 500cc twins.
The 650 twins had frame numbers starting A65------.

I think Bill picked it. The 1964-65 sporting twins had the open loop A50B frame. The 1966 models started with A50C frames then went to matching numbers.

Quote
You got heat stroke in Oz?---here in New Joooisey it is brass monkey weather.

It got pretty hot yesterday when my son and I were at the Sydney Ashes test. Our seats were on the western side of the SCG, so it wasn't particularly pleasant until we got in the shade a bit after 1 pm. It wasn't bad in the shade with a bit of a breeze. Lots of water, long sleeved shirts and broad brimmed hats helped, but we still wound up a bit red.

Joe Root didn't fare so well, though Apparently he was in hospital overnight suffering from dehydration. He's out this morning, but Ali is currently batting.
According to the ground announcements, it was over 50 in the sun. They kept announcing the need to keep hydrated and not drink too much alcohol, but it didn't stop the Barmy Army from getting well and truly tanked and taking their shirts off in the afternoon sun. Goodness knows how many of them wound up like stewed lobsters.


For those who don't follow the finer things in life, Joe Root is England's cricket captain, and The Ashes are the series of Cricket matches held between England and Australia for over 100 years. England was fielding in the sun for the first half of the day, then Joe Root was batting most of the rest of the day after England lost a couple of early wickets, so he was out in 50+ C heat almost the whole day.

Re: BSA numbers [Re: Mike_G] #721446
01/08/18 12:22 am
01/08/18 12:22 am
Joined: Feb 2008
Posts: 4,260
New Jersey USA
Tridentman Online content

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New Jersey USA
Hi Bill--thanks for correcting me---my mistake--sorry to mislead Mike G.

Re: BSA numbers [Re: Mike_G] #721447
01/08/18 12:33 am
01/08/18 12:33 am
Joined: Feb 2008
Posts: 4,260
New Jersey USA
Tridentman Online content

BritBike Forum member
Tridentman  Online Content

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Joined: Feb 2008
Posts: 4,260
New Jersey USA
And--Shane---you are very diplomatic in not mentioning that Oz has made mincemeat of England in the Test series--although the last two Tests might give England some hope for when they are at home in 18 months time.
Enjoy the sun--last night here the temperature was minus 5F (-21C) with a wind chill of minus 25F (-32C).
Not been above freezing point since before Christmas.
Happy New Year!

Re: BSA numbers [Re: Mike_G] #721448
01/08/18 12:44 am
01/08/18 12:44 am
Joined: Feb 2014
Posts: 1,031
Lancaster, California
C.B.S Offline

Parts Dealer
C.B.S  Offline

Parts Dealer
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Posts: 1,031
Lancaster, California

Re: BSA numbers [Re: Tridentman] #721449
01/08/18 12:58 am
01/08/18 12:58 am
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
S
Shane in Oz Offline
BritBike Forum member
Shane in Oz  Offline
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S
Joined: Oct 2001
Posts: 1,123
Sydney, Oz
The Australian wickets, particularly Brisbane and Perth, have been comparatively sedate this year, but you still can't beat speed.
England's medium pacers do much better where there is movement in the air, so the 2019 series should be interesting.

Does anybody know yet whether the 2019 BSA International will be held on dates suitable to try to take in a couple of days of the cricket?

I think I mentioned earlier that -5 degrees C is too cold for me, let alone negative Fahrenheit temperatures. I guess it's what you et used to, but I doubt I could get used to those sorts of conditions.

Mike, apologies for hijacking the thread, but at least we answered the question before going too far off track.

Re: BSA numbers [Re: Tridentman] #721451
01/08/18 1:16 am
01/08/18 1:16 am
Joined: Aug 2001
Posts: 5,022
Stone Creek OH USA
R
Rich B Online happy

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R
Joined: Aug 2001
Posts: 5,022
Stone Creek OH USA
After the stretch of cold we have had since Christmas.....21 F feels absolutely balmy. I was just outside and was amazed how much better it feels. Above freezing tomorrow for first time in like 18 days.....


Life is too short to drink cheap, bad beer.

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