Dropouts or hangers connect your frame to your gear derailleur and act as the intermediary to try and protect your frame from damage make inspecting your hanger for correct alignment a regular check and if in doubt speak to your local authorised giant liv retailerfeatures two bolt fitting anodised finishfits 09 10 avail defy advanced 10 avail defy alliance 10 dash rapid 05 08 ocr composite 05 10 tcr advanced advanced advanced sl 07 08 tcr composite