Hi all,

I currently have a 2 speed brompton and after having the cable snag a few times causing me to be stuck in the larger cog (which i never use) i decided just to remove the whole derailleur assembly (keeping the tensioner in place) so it permanently sits in the smallest cog which I'm very happy with but would like to make it look a bit more 'factory planned'.

I've already had the gears off the bike and back on for cleaning but know nothing of bike terms and how to gain measurements, can any one advise what spacer id need to buy in order to remove the larger of the 2 cogs entirely? id also like it to take into account that i didn't want to use (although I'm guessing many will advise against it) the plastic guard that sits nearest the wheel on the freehub.

lastly is it possible to easily fit an even smaller rear cog still (than the 12) or a larger chain ring (than the 54) without too much fuss and cost?

thanks

Dan