Knorr Bremse AG is a Germany based Company. The Company manufactures braking systems and other subsystems for rail and commercial vehicles. It operates through two segments: Rail Vehicle Systems and Commercial Vehicle Systems. The Rail Vehicle Systems segment equips safety-critical products and systems for equipping mass transit vehicles such as commuter trains, metro cars and light rail vehicles as well as freight cars, locomotives and high-speed trains. The Commercial Vehicle Systems segment offers products for trucks, buses, trailers and agricultural machinery. The product portfolio includes brake systems and vehicle dynamics solutions, such as driver assistance, energy supply and distribution systems, such as air compressors, and fuel efficiency products and transmission subsystems, such as vibration dampers, among others. The Company also offers aftermarket services.