The BMW base support system with antitheft locks complies with the most stringent safety requirements. Support arms are made of high-strength aluminium tubing. The system is easy to fit, with no tools required. Maximum roof load up to 200 pounds. Vehicle must be equipped with roof rails, contact your center for more information. BMW's modular roof rack system with coded bolts offers security and practicality. Made of high-tensile aluminum tubing, it is remarkably lightweight, strong and corrosion-resistant. Lockable, easy to install and is compatible with a wide range of aerodynamic attachments. Shown with Universal Holder sold separately. Vehicle must be equipped with roof rails, contact your center for more information. Lockable system is equipped with an anti-theft feature and complies with the most stringent safety requirements. Maximum permissible roof load: 165 lbs. Support bars are made of high-strength aluminum tubing.