Sold with the clear lens and dark smoke lens in addition. The bell race star flex helmet is the ultimate choice for the racer with a day job, where every race weekend decision counts. Offering all the features to set the best protection, the bell race star flex helmet utilizesa 3k carbon fiber shell and is packed with cutting-edge technology to deliver premier performance. The advanced flex system liner provides comprehensive protection, magnefusion cheek pads ensure superior comfort with optimal fit. The desire to win startsin the head!the bell race star dlx flex helmet comes with a panovision 120 pinlock clear shield installed and an additional panovision dark smoke 120 pinlock with tear-off posts shield in the box.developed on the track.workingon the track with professional riders is the best way to understand the challenge and find solutions quickly. Optimized aerodynamics. Using thewind tunnel, bell hasperfected the aerodynamics of the star series with advanced driving simulations. More size, more perfomance the 5 shell sizes and the 5 of eps allow you to have a more proportioned fit and an improved performance, especially at high speeds.flex system. Three different protective layers designed to absorb three different potential impact scenarios: low, medium and high speed.view. Certainly superior to the traditional vision thanks to panovision ™ by bell technology. Adapted fit. Segmented construction, automatically adapts to the rider's head. Rotational management of the energy created with a "sliding zone" to reduce the rotational energy coming from the impact angle.ventilation. With the new segmented shell in combination with the velocity flow ventilation system bell is able to provide an even cooler helmet. Features: flex protection system. 3k carbon shell. Antibacterial interior. Panovision™ class 1 visor. Magnefusion™ magnetic cheek pads. Adjustable raceview system compatible with glasses. 120 pinlock shield. Weight 1500 grams. Meetsorexceeds ece certifications.