Shoei Transitions CWR-1 Photochromic Helmet Shield with Pinlock Pins

Want to enhance your motorcycle ride? Shoei Transitions adaptive motorcycle shields seamlessly self-adjust from clear to dark and back again with changing light conditions for enhanced visual performance throughout your ride.

Superior Riding Performance
Whether dominating the race track or out for a pleasure ride, motorcyclists know how important clear, crisp vision is. Traditionally, riders dealt with changing light conditions by carrying two shields (one clear, one tinted) with them at all times. Shoei Transitions adaptive shields solve this problem - and even enhance vision - by seamlessly adjusting to optimized darkness levels with the changing light.
Transitions Optical: Leaders in Photochromic Technology
Transitions Optical has been an industry leader in photochromic technology for 20 years and is known worldwide for its photochromic prescription eyeglasses: Transitions lenses. The company's continued commitment to innovation has helped Transitions lenses to become the leading photochromic opthalmic lens product and the number one eyecare professional-recommended photochromic lenses worldwide. Driven by innovation, the company has continually improved its core clear-to-dark product (Transitions lenses), and has expanded in other areas with additional products that meet consumers' visual needs, including sunwear and everyday products with varying features (lightly tinted to very dark and variable polarization). Transitions adaptive sunwear is the company's sunwear brand, which includes both prescription and non-prescription sunglass lenses, and motorcycle shields that automatically darken and lighten in outdoor light. For the first time, with Transitions adaptive shields, the company is expanding its product offering to non-ophthalmic products, bringing Transitions' state-of-the-art technology to a broader audience. Transitions sunwear products are designed to enhance visual performance outdoors, optimizing the amount of darkness and color for specific outdoor activities like motorcycling, golf, driving, cycling, running, hunting/target shooting and water sports.
How Photochromics Work
Photochromic technology allows visors to automatically and seamlessly change from clear to dark in sunlight. The process works when photochromic dyes embedded into the lens or shield react to UV light, changing levels of darkness with the sun. When UV light is removed, a chemical reaction driven by ambient heat reconverts the activated photochromic molecules to their original, clear form and the lens fades. The amount darkening is a function of the competition between the activating and fading chemical reactions, the equilibrium condition established between them, and the specific photochromic molecules and the lens substrate. The more activated photochromic molecules that are present, the darker a lens becomes. The degree of the darkness depends on the level of available UV radiation driving the activation reaction and the temperature of the lens, which drives the fade reaction.