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A65L Seat?
#814697 07/01/20 5:31 pm
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Ragmanx Offline OP
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The seat on my 1968 Lightening is pretty beat up and considering buying a new one from Classic Bike Shop in the UK.

My question is about the seat currently on my bike
The back screw tabs do not line up with the tapped holes in the seat pan.
Could the seat pan be from another model such as a Thunderbolt or 441?

Has anyone any ideas?

Thanx
Steve

Last edited by Ragmanx; 07/01/20 5:32 pm. Reason: left out year of bike.
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Re: A65L Seat?
Ragmanx #814704 07/01/20 6:33 pm
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The frame tab were moved back some time around 67 or 68... you've probably got an early seat on a later frame (or vice versa)

Re: A65L Seat?
Ragmanx #814705 07/01/20 6:38 pm
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The seats and frames are the same for all A50 and A65 models 1965-1970, maybe earlier too. I'm not familiar with B44 seats. Is the seat a hump-back or is it flat? If it's flat, it could be a Triumph seat, or a'71-'72 BSA seat. A picture would help.

Last edited by Mark Z; 07/01/20 6:46 pm. Reason: correction

Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: A65L Seat?
Ragmanx #814706 07/01/20 6:48 pm
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Marc - Probably an early seat

Mark- It's a hump back.

Thanx guys

Re: A65L Seat?
Ragmanx #814710 07/01/20 7:22 pm
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I have a 1967 (hump back) seat on a 1970 frame, and it fits.

Now one thing, at some point between '67 and '70, they RAISED the frame lugs. The earlier lugs were more or less flush with the frame whereas the later lugs are raised about 1/2". So if the lugs don't line up vertically, you might just need spacers between the lugs and the seat. But I know the lugs did not move horizontally, at least from '67 to '70.

A50/A65's did not have hump back seats until 1966, so your seat is either '66-'70 or from some other model.


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: A65L Seat?
Ragmanx #814711 07/01/20 7:25 pm
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Hmm, I just looked at some B44 images, and I see that some also have hump back seats. The frames are likely to be different from A50/A65 frames, so maybe you have a B44 seat.


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: A65L Seat?
Ragmanx #814720 07/01/20 8:13 pm
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69 the seat lugs raised but the flatter brackets required a spacer or at least the 67/68 flat brackets. 67 was the first year of the repositioned seat brackets.

From what I have seen also the post 67 seats had mounts for both frame types.

Ragmanx: would it be possible for you send a photo of your seat?


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: A65L Seat?
Ragmanx #814759 07/02/20 12:38 am
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I believe my '68 frame has the relocated lugs and I have an older seat.

To save the cost of a new seat, I think I'll just rig up a niece thick flat of 1' stock from the existing hole to the frame tab.

That will work fine.

I'm sure another or new seat will be in the future.

Thanx for all the new information on the seat differences.

Steve.

Last edited by Ragmanx; 07/02/20 12:40 am. Reason: More info. added
Re: A65L Seat?
Ragmanx #814773 07/02/20 6:07 am
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Leighton's do the best seats and if you do not want to deal direct there are stockists in US, they also do foams and covers of you base is good but you want a refresh.

Re: A65L Seat?
kommando #814786 07/02/20 12:13 pm
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Originally Posted by kommando
Leighton's do the best seats and if you do not want to deal direct there are stockists in US, they also do foams and covers of you base is good but you want a refresh.

They do nice seats but the shape is still wrong and foam too thick on them for someone after originality. If not then its probably one of the best looking seats money can buy, my Burton Bike Bits seat is still far more comfortable than my Leightons one.


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: A65L Seat?
Ragmanx #814969 07/04/20 1:54 am
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I think I'll tend to some other things that need sorting before I invest in a new seat

The info. on BSA moving the tabs on later bikes is great to know.

I noticed in the pics of some new seats is that they have four holes to match either of the tab locations.

I will move on to replacing the handle bars and acquiring a grab rail.

The tank has three dents I could due without, but good luck to me!

Thanx again for the seat info

Steve
.
.

1 member likes this: Allan G
Re: A65L Seat?
Ragmanx #814992 07/04/20 7:40 am
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Look out for LF Harris bars, they are made of thick walled tube and unlike many others they are the correct shape.


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: A65L Seat?
Ragmanx #815015 07/04/20 12:23 pm
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as allan sez the LF Harris bars are thicker if you try to put Halcyon bar end mirrors on they will not go unless you grind the part that inserts into the bar quite a bit to reduce its diameter...…….I just went through this ordeal


1972 Triumph T120
1968 BSA A65
1968 MGB Roadster
1979 Chevrolet Camaro Berlinetta
1969 Honda Mini Trail
1939 farmall f30 tractor
2004 Honda Shadow Aero
1972 BSA Thunderbolt
1975 yamaha xs650b
1972 Norton commando
2 olive drab WWII military bicycle replicas
Re: A65L Seat?
Ragmanx #815063 07/04/20 6:28 pm
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This seat spacer is correct for '66 - '68 A50/A65. It is 3/8" x 1" x 1/2"

[Linked Image from i.postimg.cc]


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
1965 Cyclone Competition Build
Re: A65L Seat?
Ragmanx #815085 07/04/20 8:47 pm
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Perfect. I havs some 3/8" rubbers and can duplicate.
Thanx,
Steve


Moderated by  Allan G, Jon W. Whitley 

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