I have an Arai Astro Tr, and am looking at getting a purple iridium visor from this dude on ebay: http://tinyurl.com/b6y2e It says in the description that it fits QUANTUM(SUPER AdSis MODELS), QUANTUM/s, QUANTUM/e, QUANTUM/f, QUANTUM/j, ASTRO/j, RX-7RR, RX-7RR3, RX-7XX, RX-7RR4, NR, NR-2, NR-3, OMNI, RAPIDE, RAPIDE-3 & RV Does that mean it will fit my helmet? I have tried Australian Arai supplier (cassons) but they don't do the purple shield. Does anyone else know where I could source a purple iridium visor for Arai? I went to the Arai USA website (they don't have australian section) and they don't sell internationally. Also, what is iridium like at night? Is it effectively a dark tinted shield?