After 6 weeks, the chain tensioner was bent. According Dolmar there is no guarantee it. Sad sad you can only say. And they can not send the replacement part. Must be ordered and picked up commercially. Dolmar then calculated according to dealer 15 Euros shipping costs for an article in the 9 euro costs and fits in an envelope. Again sad. In this company? Ne never thank you again. Total kundenunfreundlich