Thanks all. So consensus seems to be to go shorter than I'd considered. Something in the high sixties, maybe a 48x19 to avoid having to change the chainring. Might buy a few different cheap freewheels and see what works, then splurge on proper kit. Back of a fag packet says I need an extra link to go up to an 18, but I should be able to try a 19 after that just by pulling the wheel forward. So 2 x freewheels, 1 x chain to start with, see what happens. I think I'll stay firmly ss until I've found a gear that works for me.
Thanks all. So consensus seems to be to go shorter than I'd considered. Something in the high sixties, maybe a 48x19 to avoid having to change the chainring. Might buy a few different cheap freewheels and see what works, then splurge on proper kit. Back of a fag packet says I need an extra link to go up to an 18, but I should be able to try a 19 after that just by pulling the wheel forward. So 2 x freewheels, 1 x chain to start with, see what happens. I think I'll stay firmly ss until I've found a gear that works for me.