Granted these are coming off for track use, but as a streetbike I immediately knew I wanted to do away with the OEM stalk mirrors and my first instinct was to simply machine down the OEM bar end weight to accept a CRG Arrow Mirror.

This is going to be two parts:

1. What I tried
and
2. What I ended up with...

The OEM bar end actually worked fairly well except the Honda OEM internal bar end weights are rubber coated and they flexed enough that you could inadvertently rotate the Arrow Mirror with just a little pressure from your hand.

Chucked up the OEM bar end and machined a groove in it

After using this for about a week I was just not happy with how much rotational movement I could get out of the mirror mount so I decided to go another step and use a CRG internal Bar End Mount Kit coupled with Sato Racing Long Bar End set.

What I then discovered is the longer Sato Racing Barends made getting the bike in and out of the house or shop doors a little bit tricky in spite of being able to fold up the mirrors

Regular Position

Folded Up Position

Ultimately I ended up going with a set of Short Sato Racing Bar Ends