Hello - thanks acidfast and slalinar for your fast replies! I had a quick look at the links you sent me. No doubt those suggestions are durable.

I'm having a look and I'm thinking these bikes look very heavy (>15kg). Also, I'm only 5 ft 3, so I don't know if I can be bothered lifting it up many flights of stairs. But it must be better against winds?

Do you advise then that I stay away from the lighter and more delicate frames, and opt for something sturdier?

Thanks again