Here is another quick mode that works well for me. If you have a 3speed Brompton shifter and get annoyned by the rattle, this simple and reversible mod will eliminate it.


1. Start with a 4-5mm drinking straw, prefereably black for asthetic reasons, and cut a piece of 44mm.



2. You don't need to take apart the shifter cover. This picture demonstrates where the straw will end up.



3. Shift to first gear (lever all the way down) and insert the straw in between the front cover plate of the shifter and the lever.



4. Push the straw all the way in. Make sure it is seated behind the raised edge of the shifter cover.


And this is the mod with a black straw. It fits better the shifter color.

Now go out, ride and shift normally. The straw will prevent the lever from rattling.