In order not to be dependent on a bicycle shop with its repair service I put a whip to me. The quality is good, the handle is the high effort unfortunately a bit unwieldy, so that the handle strongly pressing in the hand. Simples product, good value for still okay. Supply of BOC via Hermes took 3 working days. I am satisfied and who has only a little manual dexterity, his pinions may change alone and yet with a puller.