Arai XD-4 Standard Visor racks which darkens automatically as conditions

which darkens automatically as conditions dictate

ball and socket technology allows for near-infinite adjustability

2 or 3) is easy to read via an LED display

You can loop the vinyl-coated S-hooks around most standard handlebars

Detailed specs from KLIM:

Arai XD-4 Standard Visor racks which darkens automatically as conditionsThis replacement face shield with brow vents fits Arai XD4 Helmets. Like all Arai helmets, the XD4 uses integrated vents in the shield with operable exhaust vent ports on the backside of the helmet, following the Arai philosophy that the helmet's EPS liner should not be compromised for the sake of venting. This shield is offered in only clear, light smoke, or dark smoke. (No Daft Punk silver iridiumfor that you'll have to go with the excellent Shoei