Found this in my Mum's garage

[Origamist]

The "Ti" part of the Reynolds 531 badge would date that Claud Butler to the late 70s or early 80s (the prefix "Ti" was only introduced after 1977 I believe).

 

[Origamist]

Oh, if you get a chance, check the calipers (Weinmann?) and hubs (although they could well have been swopped) to see if they have a date stamp i.e 79 or 81 etc Then you can check the CB catalogues from that era for the frame...

 

[raleighnut]

Very nice, keep it..........................................................................................but fit some gears.

 

[Jacqueslemac]

If you post some photos on the Retrobike forum http://www.retrobike.co.uk, I bet you'll find out all you ever needed to know (and more).

 

[Smurfy]

The gubbins round the seat stays could be part of a rack mount.

I ride in hilly areas on fixed, it's definitely doable.