Thanks, Roger. Just what I need to know.

I need some advice on my clutch, please. Is it essential to use clutch centre 3355-57 if a later clutch drum with friction inserts is fitted, or can the earlier type with the 'tags' on which the first plate abuts be used? Can the earlier clutch centre with 'tags' be modified so that it fits in the s...

Good question! Someone must know....

That's very interesting, Roger. I wonder how difficult it would be to register a bike built using a frame modified to these specs with a Square Four engine in it.

Thanks for the background information, David.

Thanks for the replies, gentlemen. It turns out that the bike in question has a twin downtube frame and the owner had Graham Horne build it for him.
Mystery solved!

Hello David,
An old thread, I know, but is there any evidence that this was a factory-built bike (or even a copy of a factory-built bike?)
Allan.

Could anyone please tell me if Graham Horne ever converted a standard, single downtube-type Square Four frame to swinging arm rear suspension? I know he modified s/a (or prf if you prefer) frames to accept Square Four engines and gearboxes, but did he ever fit a s/a rear subframe etc. to the front c...

B****r!
I recently sold a complete, unused Enfield disc front wheel, caliper, m/cylinder etc. Having sold my Bullet, I thought that I would have no use for it. Now I know better.....

Thank you, Paul.