1954 Golden Flash centre stand

[Adtrac]

Was the 1954 BSA Golden Flash fitted with a centre stand and side stand from factory or is the side stand an option?

[limeyrob]

Is this the last of the plungers or first of the swinging arms?

[Adtrac]

It is the last of the plungers

[JulianS]

Centre stands were standard fitment.

Prop stands were an optional extra.

[Swarfcut]

 My understanding is that the prop stand was standard fitment on Plunger Frames from the '53 Model Year. Mine has one. These frames feature a brazed on lug for the prop stand. Earlier frames are plain. However without a price list from the time, the actual prop leg may have been an optional "extra".
 This added lug was part of the "improvements" at the time. including Diver's Helmet Cowl, underslung pilot light, oilfeed to camshaft trough, drive side crank oilseal.

 For a '54 Plunger the original engine number series is BA10. Frames are the same for A7 and A10 Plunger bikes, all being BA7S.  S indicates a sprung frame, i.e. plunger.

 Swarfy.

 

[limeyrob]

A thought - while the side sand may have been optional did all the frames have the lug brazed on during manufacture?  It makes sense since it has to be brazed on before paint.   I did have a BSA (can't recall the model) that had a clamped on side stand that was not brazed.  It would the hold the bike for a few days before sliding round the tube no matter how tight so I can't see that as the factory solution.

[JulianS]

The swinging arm frames got the welded on prop stand bracket from around mid 1954 for the 1955 season models. Around the same time the steering lock bracket and the 2 cast top engine mounts (replacing the tubes  previously used) were also introduced.

[Adtrac]

Thanks for the input guys, I will treat it as an optional extra until proven otherwise

[MikPowl]

I have 3 rear plunger-A10 sub-frames.  One has no welded-on sidestand pivot,  my '54 SuperFlash that has a welded on pivot and for which the sidestand was a standard fixture, and another 'standard' sub-frame that does have the welded-on pivot.  Both my '49-'53 and my '54  BSA Spares books show the welded-on pivot,  BUT - the '49 to '53 list also states that prior to '53 the propstand was provided as an 'assembly' 67-4879, and from '53 on was 'assembly' 67-4902 (confirmed in the Draganfly parts drawings).  Taken together this suggests that that the early assembly included a clamp-on bracket (and may have been been optional) but from '53 on the simplified assembly simply bolted to the welded-on bracket.   (Even more confusing - the S/F sidestand leg is a different part from the standard A10 leg - anyone know why?)

[chaterlea25]

Hi All,
Julian,
I have a 54/5 swing arm B 31 frame ,
It has the steering lock but only welded front engine mounts, and no sidestand lug.
All the joints on the frame are gas welds..

It is destined to be used for my replica Goldie bas#$d so the steering lock is going and a side stand lug is being added

John

[bikerjohndavies]

(Even more confusing - the S/F sidestand leg is a different part from the standard A10 leg - anyone know why?)

The reason for the different part number 67-4888 is that SF sidestand leg is very similar to the later one used on A50/A65's and unit Triumphs.

[Greybeard]

My 1955 Plungie had the brazed on lug but there was no prop stand and no evidence of one ever being fitted. I eventually fitted one, found on eBay.

[Rex]

My '51 doesn't have the lug or any sign that there ever was one fitted.
Given the (ill)treatment the old girl has suffered that's probably a good thing, as it most certainly have been worn out, broken off or cracked the frame tube by the previous uncaring owners.

[MikPowl]

(Even more confusing - the S/F sidestand leg is a different part from the standard A10 leg - anyone know why?)

The reason for the different part number 67-4888 is that SF sidestand leg is very similar to the later one used on A50/A65's and unit Triumphs.

Thanks, John!  That explains it. I think that's the stand that is more a piece of bent bar than a stand with a proper foot on it? But goodness knows what was originall fitted to mine as it's a late '54 and one of the last 10 made when they were just desperate to get them out of the factory having been 'overtaken' by the Road Rocket.