73mm for Shimano, SRAM, NuVinci

Ed B. – Hunstville, AL

I may not get a picture to you in time, but I do love my mirror. I had used a “XXXXXX” tiny mirror inside my sunglasses for years, and I switched to yours after receiving a coupon at the Bike Florida ride this year. What a difference. I should have done it years earlier. It always stays in place and gives me an almost panoramic rear view. Since we have to ride on shoulderless roads a lot in my area, I feel so much safer, now. A great product!