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Only question on originality from the picture is the lever itself.
They appear to be straight where I think the originals might have been like mini baseball bats in profile.
Probably the angle that picture is taken at.

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Mainjet sizes!
Like to get some feedback on main jets that are fitted to RGS's?
I would like to know what you guys have found and whether jet is with or without air filter.
I am upto a 400 with a K and N filter .
Bike seems to run very well but did seem reluctant to rev much past 5000.
Some hint of clutch slip in the lower gears and a tach that seems to zero out at 800 revs when engine stops may be disguising the real problem.
(Clutch slip)

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RGSDave Offline OP
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Hey Rob
This is just a guess but I think these taps are plated with hard chrome.Do you know if the taper was originally plated or brass.I was thinking I could lap the tapers and have them re-hard chromed.
Thanks Dave

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pretty sure it is not hard chrome. originals were a gray plated, finish -known as satin chrome.If yours clean up as shiny , decorative chrome they are probably not the ones BSA put on.
If you need to see some- Norton used satin chrome on most of their hardware in the fifties and sixties .Velocette used it on their rocker oil feeds and handlebar bolts.
And of course Gold stars had the the same tap.
Your lapping will be brass on brass if you are going with original stuff

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Thanks for the info Rob,I think I will leave them how they are and just get them working right.I will need to do something about the filters,they have a couple of splits.
Thanks Dave

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I found another RGS this weekend about 60 miles from my house. Owned by forum member 'BritTwit'. Besides the RGS, Dan has has an incredible collection of Goldstars and A-10s.

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Here are a few shots of Dan's other bikes:

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RGSDave Offline OP
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Continued:

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

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great resource, its nice to gather all the pics in one place!

so, I know my bike is not standardly named an RGS, but I see so many parts that are the same, I really wonder what the official differences that make an A10 Rocketly Golden? I'm sure it's been discusses at length, but since this thread is dedicated, it might be nice to collect that too? hopefully I haven't doomed the thread to rivet counting and disputation... wink

is it the big valves? is it the 8" half width brakes? is it the... ??

is it just what the factory records say it is?! I like the first line in your first post, of the 1584 made, we only know 3000--> good stuff! smile


=================
/1957 BSA A10 Spitfire Scrambler (in a friend's shed)
/1960 BSA Super Rocket Basket Case (in the attic!)
/1987 BMW K100LT nekkid
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Hey Snow,
Good Question. I'll gather up some of my information. I'd like to pull together the most correct info and put something together in the next day or two.

Thanks,
Dave

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Okay, here we go.

According to the heading from the BSA Parts Service Bulletin No. G21:

"All parts except those listed below are as shown in the Super rocket or Gold Star Part Catalog. Parts marked with + are new components for the Rocket Gold Star and not used on other models."

So, according to the bulletin, there are 39 parts that distinguish the RGS from other models.

Based on my research, a lot of what makes an RGS are letters and numbers. There are very particular parts, but many variations within the RGS model. All RGS' had engine number 'DA10R' as the prefix and all frame numbers had 'GA10'.

Frames were specific to RGS for the following reasons:
* Four lug cast front motor mounts
* Large front neck gusset
* Gusset for rear sets
* No pillion loops on RGS Scramblers
* Center Stand

It has been stated many times that all RGS' were equipped with the RRT2 transmission. I believe this to be false because I've seen so many variations. For example: STB, ARRT, STBT.

I've also seen it stated that all RGS' have the large Goldstar type tank painted in silver, which many models, including the RGS Scrambler, RGS Special and RGS came with a small tank painted in red, black and silver depending on where it was dispatched to. I have no facts to back this up, this is merely based upon the research that I've done.

The fenders, front and rear, are specific to RGS only. Rear fender stays are arrowhead type, also specific to RGS.

Front forks are the same as the Goldstar with the upper triple tree not having a fork lock. And either chrome headlight shrouds with fork gators, or tubular headlight bracket with clip-on bars. Tachometer and speedometer were specific to RGS USA and UK versions.

Brake options were standard 8" front or 190 mm with hammer tone finish. Rear brake is quick disconnect with finned cast iron drum. Rear brake pedal is different for forward or rear controls operated by brake rod instead of cable.

Rims are 19" chrome/steel or alloy front and rear.

The engine is a Super Rocket A-10 with some upgrades; 9:1 pistons, 1 1/2" intake valves, 1 5/32" mono-block carb (389/94 for 1963), thick flange cylinder barrel and I believe that the cylinder head was specific to RGS. Twin exhaust pipes for the US model with Siamese as an option.

This is all based upon my 5 years of research in rebuilding my RGS. Given the fact that I was born four years after the last one rolled of the assembly line and never saw an original one, I welcome and encourage any corrections and additions to the listing above.

Thanks,
Dave

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Hi dave, that is a really good list- congrats.
couple of extra comments, The late super rockets also had the extra cast lug front engine mounts so these frames are the ones that the better forgers look for.
Thete is also a subtle difference in the positioning of the battery tray supports and the frame cross tube just above it.I caanot recall if it is closer or wider but if you jam a couple of fingers between these on a std frame then compare to a genuine RGS there is a difference.

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Nice list,

Also: Inner primary cover, rear chain guard, taillight/license plate bracket (also used on some Bantams), one of the four rear fender mounting brackets (other three same as on A10), front fender mounting brackets, Speedo & tach mounting brackets, plus there are other parts that are shared with the Gold Star.





1966 Triumph Thunderbird 6TA
1967 Norton Atlas
1967 BSA Spitfire
Several Harleys
BobM #238859 02/20/09 2:05 am
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How about decals for the RGS, are there any that are unique to this bike? On the top of taillight housing, I've seen; 1) stacked rifles, 2) stacked rifles with 650cc under the rifles and 3) stacked rifles with 650cc Twin under the rifles. Anyone know which came on the bike?


1966 Triumph Thunderbird 6TA
1967 Norton Atlas
1967 BSA Spitfire
Several Harleys
BobM #238875 02/20/09 4:18 am
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Hi Bob,I contacted Classic Transfers in the UK an told them I needed decal set for an RGS.The set they sent me had the stacked rifles with 650cc below.I believe this to be correct for RGS.


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Hey Dave,do you know where your Spitfire was originally dispatched to?I have heard that the west coast USA bikes got the 18" rear rims.
If your interested I have a decent Jones rear 18" rim you can have for the price of shipping.
Thanks Dave

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Can't find any images of motorcycles on the link RGSdave posted.

It seems to the frame and engine numbers would be the most difficult to fake.

Bob

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Hi if anyone need tocheck there numbers i have a copy of the factory records .

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Would you possibly have a copy of the Competition Shop records?


1951 ZB GS
1953 BB GS
1953 Super Flash
1954 Vincent BS
1963 RGS
1956 Triumph T110

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Originally Posted by bsalloyd
Would you possibly have a copy of the Competition Shop records?



Lloyd I don't think those have been found since John Gardner's demise. I was recently told from a very good source that he actually told his wife to destroy the records upon his death. Seems there was some conflict between him and others that wanted the records.


Bill B...





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Yes, I know but it does not hurt to ask.


1951 ZB GS
1953 BB GS
1953 Super Flash
1954 Vincent BS
1963 RGS
1956 Triumph T110

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Hi i dont have the comp records ,yes John did tell wendy to get rid of all his records .

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To destroy valuable historical documents for some petty dispute is, in my opinion, a CRIME.

He has cheated future generations of needed information by doing so.

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Last edited by jfligg; 12/24/18 2:07 pm.
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Is it ridable with the bars at that angle?

[Linked Image]


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What angle should they be at? Jeff

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