Just changed from a 6 speed cassette to a freewheel set-up. The cassette had 30 teeth on 1st gear but the last thing I really want to do is to go for a 28 teeth job (It was hard enough with 30!). So.....looking for a 6 speed freewheel with 30 or more teeth on 1st gear. I'd happily go for 32 teeth even - but would want to be (fairly) sure that my present set up could handle it. (Apologies if I'm asking for the impossible - very new to all this). Thanks