We had a derailleur hanger that needed replaced on our bike we purchased from them but as the bike was in another state, and we somehow misplaced the paperwork, were having trouble identifying which one we needed. After calling into BikesDirect and having them quickly offer to email us copies of the paperwork, she also suggested emailing Larry who could quickly identify and show us where to get a replacement. Within 15 minutes we had our answer and one on it's way. Not only were we able to purchase a great bike at an incredible price, we were able to get great service after the fact. Definitely recommend using them!