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A65D?
#799588 02/28/20 11:09 pm
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mrcarb Offline OP
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Hello,

I am looking at an A65 engine where the stamped engine number start with A65D. Would anyone here know what the D means? I know A65L means it is a Lightning but I do not know what the D stands for.

Thank you in advance

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Re: A65D?
mrcarb #799589 02/28/20 11:17 pm
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1965 A65L LIGHTNING ROCKET

Go to Britbike.com, use the BSA info drop down menu and select BSA identification.

Re: A65D?
mrcarb #799695 03/01/20 6:32 am
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Kommando, I'm sure you meant 1965 A65D Lightning Rocket.


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: A65D?
mrcarb #799696 03/01/20 7:14 am
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I copied and pasted directly from the info and here is the same info from CBS website

1965 A65L Lightning Rocket A65D-1742 A50B-4001



https://www.classicbritishspares.com/pages/engine-and-frame-numbers

Re: A65D?
mrcarb #799700 03/01/20 8:10 am
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It might also be a 1964 Lightning Rocket.

The UK BSA Club has the Lightning Rocket shown as A65L as well, and they have the factory dispatch books.

Re: A65D?
mrcarb #799709 03/01/20 10:01 am
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Yes, pre engine number A65D-1742 is 64, A65D-1742 and later is 65. For 66 the D was dropped and became LC so D is 64 and 65 only.

Re: A65D?
mrcarb #799726 03/01/20 3:30 pm
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Would be interesting to know whether the "D" is suffixed with "C" i.e "DC" which could make it a 1965 A65 Lightning Clubman or a 1965 A65 Lightning.

Strangely the BSA Owners Club UK website suggests both the 1965 Lightning Clubman and Lightning had engine numbers starting at A65DC.2158.

The other variations as already mentioned and according to the BSA Owners Club UK website are 1964 A65L Lightning Rocket, engine no starting A65D.101 and 1965 A65L Lightning Rocket starting with engine no A65D.1742.


1968 A65 Firebird
1967 B44 Shooting Star
1972 Norton Commando
Re: A65D?
mrcarb #799749 03/01/20 10:27 pm
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All lightning clubmans are DC motors..... not all DC motors are lightning clubmans.... the C simply denotes close ratio box.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

Re: A65D?
kommando #799795 03/02/20 4:38 am
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Originally Posted by kommando
I copied and pasted directly from the info and here is the same info from CBS website

1965 A65L Lightning Rocket A65D-1742 A50B-4001



https://www.classicbritishspares.com/pages/engine-and-frame-numbers



Ok, but I don't get why they would call it an A65L when the motor # is A65D, and the frame # is A50B. It really adds to the confusion, since 1966 Lightnings ("Rocket" designation dropped) WERE stamped A65L (LC only for close-ratio gearbox, as pointed out). Well wouldn't our lives be otherwise boring?


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: A65D?
Mark Z #799811 03/02/20 9:06 am
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Originally Posted by Mark Z
Originally Posted by kommando
I copied and pasted directly from the info and here is the same info from CBS website

1965 A65L Lightning Rocket A65D-1742 A50B-4001



https://www.classicbritishspares.com/pages/engine-and-frame-numbers



Ok, but I don't get why they would call it an A65L when the motor # is A65D, and the frame # is A50B. It really adds to the confusion, since 1966 Lightnings ("Rocket" designation dropped) WERE stamped A65L (LC only for close-ratio gearbox, as pointed out). Well wouldn't our lives be otherwise boring?


Confusion is what BSA engine numbers are all about.
The same engine or bike for that matter can and did have different names in different markets and some times, particularly in the USA it was a name that originated in the local market.


Bike Beesa
Trevor
Re: A65D?
BSA_WM20 #799835 03/02/20 6:07 pm
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Absolutely right. I don't think the Lightning Rocket was ever sold in UK, It was always "Lightning" from introduction in 64 onwards. I have a number of 1964 and 65 copies of Motor Cycle and Motor Cycling which refer to it as the Lightning. I used to own one - KHV 47D with an A65D engine number and an A50B frame. I currently own an A50 with a DC engine suffix - not many of those sold in UK at least.


VicCyclone

1965 A50 Cyclone Clubman
1966 Victor GP
1967 Victor Special
1968 Victor Special
1968 A65L

2009 HD FXDC
Re: A65D?
mrcarb #799843 03/02/20 7:38 pm
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My BSA PARTS CATALOGUE for 1965 A50/65 lists on the cover:

A50 Cyclone Road Model
A50 Cyclone Competition Model
A65 Thunderbolt Rocket
A65 Lightning Rocket
A65 Spitfire Hornet

The closed rear loop frame is for the A65 T/R and the open rear loop frame is for all the other models

Gordo


The roadside repairs make for the best post ride stories.

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