Mirror extensions where to get them?

[Jswartz723]

Anybody using Mirror extensions. If so where did you get them from . reverse thread on rear brake side is the issue..

 

[wspollack]

Anybody using Mirror extensions. If so where did you get them from . reverse thread on rear brake side is the issue..

I'm not using extenders, but if you do a search on Amazon for, say, reverse thread motorcycle mirror extenders you'll find dozens of results (https://www.amazon.com/s?k=reverse+...ix=reverse+thread+motorcycle+mirror+extenders).

I wouldn't trust Amazon for electronic devices, memory cards, that sort of thing -- Amazon has a habit of reshipping returned items, or hosting outfits that ship counterfeits -- but in this type of product I think you'll be pretty safe. And Amazon typically has a great return policy.

You can also try the same search on Revzilla: https://www.revzilla.com/search?query=reverse+thread+motorcycle+mirror+extenders

For just an increase in height, for instance, this inexpensive result seems to cover all the bases:

Amazon.com: Motorcycle Mirror Mount Adapter 10mm to 10mm/8mm Standarad/Reverse Motorcycle Rear Mirror Adapter Threads (Black) : Automotive

Amazon.com: Motorcycle Mirror Mount Adapter 10mm to 10mm/8mm Standarad/Reverse Motorcycle Rear Mirror Adapter Threads (Black) : Automotive

www.amazon.com

Of course, you'll see many other extenders, some that just raise height, some with a bracket that moves them outward, etc.

I believe BMW typically uses a 10mm pitch. KiWavMotors, for instance, has this page that discusses the size and direction of the threads: https://kiwavmotors.com/en/blog/best-motorcycle-mirrors-for-bmw-motorrad

I also believe that most Yamaha, Royal Enfield, and many other makes use reverse pitch on one side -- I know that my RE Meteor 350 does -- if that helps any in your search.

Last, according to CalMoto, the stock C 400 mirrors fit:

BMW C400GT	2019, 2020, 2021, 2022, 2023, 2024, 2025
BMW C400X	2019, 2020
BMW CE 02	2024
BMW CE04	2022, 2023, 2024
BMW G310GS	2018, 2019, 2020, 2021, 2022, 2023, 2024
BMW G310R	2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024

So if you come across an extender for the 310 models, you can know that it will also fit the C 400s

Good luck in your quest, and perhaps some members who've actually swapped out mirrors or extended the OEM ones on a C 400 will chime in here.