Hopefully someone here on the forum has a Halcyon bar-end fitting and could measure the width of the slotted end? The image below shows the measurement I am interested in. I have been in contact with their customer service, but not received an answer. I have a Halcyon square, bar-end mirror mirror, but it is attached to the bar end using a fitting which is worn. This leads to the mirror having some play and it moves somewhat when riding the bike. The plan is to buy a new bar-end fitting if it fits the mirror.
