Puig has designed the electronic lifting mechanism for screens so you can adapt the aerodynamic protection that you want and need at any time with just one finger and while riding your motorcycle.The E.R.S. (Electronic Regulation System) is a plug & play mechanism that offers you the possibility of modifying the screen height of your Yamaha MT-09 Tracer by 150 mm for moments that require high protection such as on expressways or adverse weather conditions or decrease this height below the original screen for city or off-road driving.