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TurtleRecall
I know Brompton suggest replacing the sprockets when fitting a new chain, but after just 1100 miles over 6 months? Seriously? Went back to the 50T chainring yesterday, and rather than refit the links that I took off when downsizing to the 44T I decided to buy a new chain. The 16T was "Ok", but the 13T jumped like buggery under any strain.
Must be made of cheese.
Really need to investigate more into converting SRAM sprockets.