Last night I replaced my stock mirrors with Supersport Mirrors from BikeMaster. Part number for the left mirror from Motorcycle Superstore 60-1122, and for the right-reverse thread, is 60-1124. I placed a rubber washer on each 10mm stem to help with vibration, and to give them a more finished look. I am thoroughly impressed with this upgrade! The vibration at 50 mph is significantly less than the stockers, the rear-view is great because of the size of the glass. I am a happy T dubber!