All pedelec sales in Germany for 2013 was 410,000 and for 2014 was 480,000. We can perhaps predict well over 500,000 for 2015.
Those mean that if Kalkhoff sold 400,000 Impulse 2 in the last 18 months, by taking over half the market they must have really hurt Bosch and all other pedelec makers.
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