Control devices for vehicle parts, vehicle components, in particular vehicle suspension systems, vehicle attachments, vehicle accessories, and trailer hitches for vehicles; Devices for detecting the operating and load conditions of vehicle parts, vehicle components, in particular vehicle suspension systems, vehicle attachments, vehicle accessories, and trailer hitches for vehicles; sensors for detecting operating and load conditions of vehicle parts, vehicle components, inparticular vehicle suspension systems, vehicle attachments, vehicle accessories, and trailer hitches for vehicles; electrical equipment for vehicle accessories and vehicle attachments.

Vehicle parts, in particular body and frame parts, vehicle suspension systems, supplemental suspensions and parts therefor; Vehicle accessories and vehicle attachments and components therefore; Trailer hitches for vehicles, trailer couplings; Removable or pivotable trailer hitches; Fixed and pivotable receiving devices mountable on the vehicle for removable trailer couplings; impact absorbing carrier systems and mounting elements for trailer couplings; Stabilizers to inhibit the sway and/or pitch of vehicle trailers; Stabilizers to ensure balance; Breakaway couplings for vehicle trailers; Transport systems for tails and parts therefor; Bicycle carriers and load carriers for mounting on trailer hitches for vehicles or on receiving devices for trailer couplings; Impact-absorbing systems for vehicles; Impact-absorbing components, in particular cross-members, mountable under a bumper; Electrical equipment for trailer couplings and transport systems and bicycle carriers and load carriers.