I bought several parts from Derek and Donna and every transaction went well; fast shipping, well packed, etc. Then I contacted them about a rear pulley they had listed and said I wanted to be sure it would fit my bike before ordering (gave them year, make & model). They told me it would. When I received it, it didn't fit. I contacted them, explained the situation and asked if I could return it. They told me I must be an idiot and there would be a 20% re-stocking fee if I returned it. I replied that I didn't appreciate their fucking attitude, particularly since I was a repeat customer. I never returned it. They never replied, but simply banned me from ordering again. (I gave them positive feedback on prior orders and no feedback on the one that went sour.)