Got my 2nd mirror extenders. These are good across all Yamaha detachable type mirrors. Compared these to the Chinese types, these are neater and cost much lesser than Koubalink’s.
They help increase visibility and widen the rear angle way better than OEM’s short position. This does not replace checking blind spot, you must check your blindspot at all times. It does increase comfort and line of sight. Must have!
Link for you if you wish to get it
Yamaha Tracer 900 MT09 FJ09 Build n Ride 