Author Topic: Superflash  (Read 404 times)

Offline manxman

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Superflash
« on: 25.01. 2020 21:12 »
I have aquired a Superflash rigid frame. Any help with what oil tank will  fit the frame with a A10 semi unit motor?
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Online Superflash

  • Tony
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Re: Superflash
« Reply #1 on: 26.01. 2020 06:15 »
Hi Manxman, is it an A10 SF motor that's going into it? 
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Offline manxman

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Re: Superflash
« Reply #2 on: 26.01. 2020 06:52 »
If  I can find one, otherwise a golden flash.
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Offline spanersc

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Re: Superflash
« Reply #3 on: 26.01. 2020 10:05 »
A rigid Super Flash frame, Hmmm!  Thats intriguing!    I'm not aware that the factory ever produced a Rigid S/F  infact the Super Flash frame number prefix of 'BA10S' denotes that its 'sprung' ie plunger!  The rigid A10/A7's sometimes had an 'R' in the prefix and sometimes nothing but an 'S' is for sprung!  I can only assume someone has attached a rear section from a two piece rigid frame to the Super Flash front section?  Some further information would be interesting. Thanks. Pete
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Peter C    Cambridgeshire. UK   1935 Blue Star. 1937 B24 Empire-Star, 1950 A7 Rigid.  1952 A7ST.  1953 A7ST.  1953 A10 Super Flash.  1954 A7ST.  1955 A7SS.  1955 A10.  1956 A10RR.  1962 RGS.  1962 DBD34

Offline spanersc

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Re: Superflash
« Reply #4 on: 26.01. 2020 10:17 »
Hi Again.
Sorry, forgot to say in my last post that some photos would be helpful and of great interest. Any chance?
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Peter C    Cambridgeshire. UK   1935 Blue Star. 1937 B24 Empire-Star, 1950 A7 Rigid.  1952 A7ST.  1953 A7ST.  1953 A10 Super Flash.  1954 A7ST.  1955 A7SS.  1955 A10.  1956 A10RR.  1962 RGS.  1962 DBD34

Offline Swarfcut

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Re: Superflash
« Reply #5 on: 26.01. 2020 11:07 »
     Me neither....According to Roy Bacon the Super Flash was announced in 1953, and used a modified Plunger rear section frame, plus its own unique front section. Super Flash Parts are listed in the '49-'53 parts book, pages 59-61.

   Standard Plunger or "Sprung Frame" numbers include the letter "S" to denote a sprung type frame. No "S" in the number means the frame was originally a rigid. All standard frames  are marked with a year letter, then A7 then S if a sprung plunger type, followed by the frame number. Frame numbers do not indicate whether an A7 or A10 engine was fitted.

 Superflash frame front section is identified by the characteristic swan neck saddle support tube.  This front section is part no 674141. Rear section is 67 4142. Oil tank is 67 8362. This looks very similar to the standard tank used on the early rigid A7, and is larger than the standard plunger tank. B and M series tanks are also worth a look.

 Sorry, but I have no information on frame numbers specifically for the Super Flash, but no doubt the series key will be along soon. BA10S would indicate 1953 year letter, A10 to denote a unique application, and S for plunger sprung rear.

Swarfy. 

Additional. Just noticed the parts list indicates engine steadies to the rear of the motor, the list says other parts are standard A10, so it has both front and rear steadies. Fronts clearly visible on published information, never the rears.

 

 
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Offline manxman

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Re: Superflash
« Reply #6 on: 26.01. 2020 11:56 »
My frame numbers have  a ZA7 R  prefis and the  cocked  center tube  unique to Superflash . Enter superflash in the topic list and you will see others like mine.
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Offline spanersc

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Re: Superflash
« Reply #7 on: 26.01. 2020 19:56 »
Hi Manxman.
 'ZA7R' is the frame number prefix for a cooking A7/A10 rigid between 1949 and 1951, definitely not a Super Flash.
I seem to think that this frame cropped up as a topic for discussion a while back and included some images of the frame with its dog-legged upright.
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Peter C    Cambridgeshire. UK   1935 Blue Star. 1937 B24 Empire-Star, 1950 A7 Rigid.  1952 A7ST.  1953 A7ST.  1953 A10 Super Flash.  1954 A7ST.  1955 A7SS.  1955 A10.  1956 A10RR.  1962 RGS.  1962 DBD34

Offline spanersc

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Re: Superflash
« Reply #8 on: 26.01. 2020 20:02 »
Hi Manxman.
Have a search and a read of this topic from 2017. I suspect it is about the frame that you now have.

HELP! Frame and Model ID, Rigid A7 Frame w/Super flash dogleg?
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Peter C    Cambridgeshire. UK   1935 Blue Star. 1937 B24 Empire-Star, 1950 A7 Rigid.  1952 A7ST.  1953 A7ST.  1953 A10 Super Flash.  1954 A7ST.  1955 A7SS.  1955 A10.  1956 A10RR.  1962 RGS.  1962 DBD34

Online chaterlea25

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Offline manxman

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Re: Superflash
« Reply #10 on: 26.01. 2020 22:19 »
I reviewed the 2017 postings before I bought my frame. Mine is not the one in the pictures or Sluggos. Mine shows no alteration of the  cocked center verticle tube. As far as I can determine the  Superflash is the only bike that had that feature.  If it was  not a original rigid it would not have the  R  in the prefix.  In any  case it is what I wanted !!
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Offline spanersc

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Re: Superflash
« Reply #11 on: 26.01. 2020 22:55 »
Hi again Manxman.
Perhaps some photos might help solve the mystery. There's a lot of knowledgeable folk on this forum. It would be very interesting to solve the dilemma.
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Peter C    Cambridgeshire. UK   1935 Blue Star. 1937 B24 Empire-Star, 1950 A7 Rigid.  1952 A7ST.  1953 A7ST.  1953 A10 Super Flash.  1954 A7ST.  1955 A7SS.  1955 A10.  1956 A10RR.  1962 RGS.  1962 DBD34

Offline Swarfcut

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Re: Superflash
« Reply #12 on: 27.01. 2020 08:51 »
   A quick looks at Sluggo's frame.  The seat lug appears to be a standard type, with the dog leg/swan neck saddle tube welded to the rear of the lug. My Specsavers eyes think they can see the top of the tube.
 The working drawings published indicate a different, extended lug, with the tube brazed in as normal underneath.

 So the mystery deepens. Sluggo's  looks to be a sort of prototype/race mod and either way, an important link in the development of the Super Flash frame.

Swarfy
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Offline BSA_54A10

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Re: Superflash
« Reply #13 on: 27.01. 2020 10:18 »
It is worthwhile remembering that more then one BSA special model started life as a bike modified by a race team which if clearly successful became a factory model for the following season.
Remember the comp shop was really only focused on developement of the gold star line.
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Offline manxman

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Re: Superflash
« Reply #14 on: 27.01. 2020 12:35 »
On my frame the verticle tube goes into the lug as normal factory spec. Top and  bottom.
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