A defect in workmanship is any problem with a product that should have been noticed by our skilled quality control inspection prior to shipping. Problems that could fall into this category would be gaps in welds, crooked welding, missing threads, mis-alligned cable guides etc. It is in fact any part of the manufacturing process that was completed incorrectly or missed. If something bends or breaks it is not necessarily such a defect, and all such defects need to be notified within the 90 days. Ideally such problems should be found before you begin to use the new product and if you do find something wrong get in touch straight away.