Replacement sprocket/disc set for the Brompton BWR 6-speed. Includes 13-tooth and 16-tooth sprockets, rear sprocket circlip (for driver), spacer, and nylon chain-guide-disc.
This has come stock on all Brompton 6-speeds since January 2009.
If you are replacing these sprockets, it is highly recommended that you also replace the chain as the sprockets and chain wear together and become a matched set over time.