My bike is a 2012 Cannondale Synapse Alloy 105. It has covered less than 500 miles but has developed a weird fault in the BB30 bottom bracket. The action of the crank appears smooth enough however there is a loud click clack noise when rotated (the frame seems to amplify and transfer the noise). The bike has never been pressure washed or otherwise abused. Its hard to tell from the video, but there is nothing catching on the pedals, cranks etc. On my last group ride a mate said it was like being chased by the tick tock crocodile from Peter Pan :-)

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