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The Crank Shortener makes it possible to freely adjust the length of the crank arms, e.g. for riders with legs of different lengths. The new forged part not only looks nicer than the previous version but is also more robust and can even be properly aligne Read more..
The crank arm shortener reduces the diameter of the pedal stroke for the crank arm on which it is installed. Crank arm shorteners can be installed on both sides for riders of differing leg lengths or those with limited mobility in one or both legs. Can be installed on most cranksets for both traditional and recumbent bikes and trikes.