New cruiser rear door bike carrier for seat altea xl 2006 onwards universal rear door bike carrier for all bicycle types and most types of car rear mounted 4 strap bike carrier complete with last on bike blocking safety system and special anti bump lower safety straps quick and easy to install and use 25 mm diameter steel tube colour black on series features double upper straps the most stressful point lower straps anti bounce system folds flat for storage steel buckles atte