a 10 frames

[KiwiGF]

KiwiGF,

To me, what you have there is a frame left over from '55 production, as that is the brake pedal boss for a rod-pull brake. You do not have a side-car lug.

Richard L.

According to the despatch records my bike left bsa in Dec 1955, so it's not a particularly early 56 model, but maybe they had lots of 55 frames left over and adapted them to be in the new Ariel hubbed (and cable rear braked) bikes

[JulianS]

From what I can see in the photos the centre stand currently fitted is the one used on the 1954-1957 frames, part 42 4725. It fits between the mounting lugs.

Looking underneath , when bike is on stand that stand actually bears on the frame cross tube and the welded lugs would not take the later stand which bears on the lugs when bike on stand. This later stand fits outside the mounting lugs.

Going just by the number not letters and the photos your frame, they together, would make it early 1956 season, which would probably have left the factory in late 1955, 1956 frames starting at EA7 101 in September 1955. 

The side car mounting on the pillion loop was fitted to 1958/59  FA7 and 1960/63 GA7 frame.

[chaterlea25]

Hi All,
Kiwi, does your bike have a steering lock?
It looks to be a gas welded frame?
I have wondered when they changed over to electric welded frames?
I have seem one that has a mix of weld types as if the sub assemblies were gas welded and the main frame arc welded??
Trouble remembering where I saw it now
Was your bike originally exported to NZ ?
I think they were not too particular as to what was sent overseas ??

John

[KiwiGF]

Hi All,
Kiwi, does your bike have a steering lock?
It looks to be a gas welded frame?
I have wondered when they changed over to electric welded frames?
I have seem one that has a mix of weld types as if the sub assemblies were gas welded and the main frame arc welded??
Trouble remembering where I saw it now
Was your bike originally exported to NZ ?
I think they were not too particular as to what was sent overseas ??
John

Hi John, yes it has a steering lock as per pic, I'm not sure if it's gas welded but attach a photo of a typical weld near the rear of the seat, I'm pretty sure but not positive my bike is "nz new" as it was delivered to a dealer in Liverpool that was known to do some exporting. I guess the kiwis got whatever bsa could cobble together!

[chaterlea25]

Hi Kiwi,
Yes gas welded !

John

[trevinoz]

A couple of points.
I am fairly sure that electric welded frames started in 1957 along with the sidecar lug but were still EA7 frames.
It makes sense that it could be a CA type frame which was modified to become EA.