Thanks for the welcome folks. Reading through a welter of information on this forum has left me with much to absorb, and a number of questions - which I suppose should be asked elsewhere on this forum.
I will hang on to my vintage bike, which is due back from a service tomorrow, and hopefully continue my longer rides to get to a decent level of fitness. Not sure if I can improve the bike, certainly the gearing is a little high for me. I intend to weigh it also, it will give me an idea of what I need to look at when buying something more modern. Though I will keep my current steed anyway.
Paul