Hello again all,
having taken on board all that has been said, I am fast coming to the conclusion that my best option is to look for a decent hybrid. Trouble is, I have no idea what frame size I should be looking for. I don't even know where the frame size if measured. I know that, with modern(ish) frames the frame size doesn't affect the the height at which the saddle can be set, unlike the older horizontal crossbar machines.
Having said that I guess a smaller frame also means a shorter wheelbase, and a longer wheelbase would tend to suggest better stability.
Is there an expert out there who could advise me what frame size would be best for me? Now I realize the relevant question being asked by you is "What size are you?". If it is any help, I am 5' 8" tall, have a 30" inside leg measurement, and can comfortably reach a straight handlebar that is 24" from the top of the sea post without having to lean forward a great deal. As regards wheel size, I would expect that 26" would be the optimum. Price-wise it would be so for me because I could take the new road tyres I bought, off the Rhino, and put the knobblies back on it. I would expect that the rim width of a hybrid would be near as dammit the same as those of an MTB.
Sorry to keep badgering you guys with questions, but your answers to my previous ones have been most helpful in pointing me in what I have concluded is the right direction.
Cheers
Tony