Here's the current mirror arrangement we're using on barakta's ICE trike. The B&M mounting described above was sturdy enough, but the small mirror area was a problem that far forward, and it suffered from vibration blurring.
While in Decathlon back in December, I discovered
these:
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3387.sized.jpg)
Optically, it's similar to a Mirrcyle. It seems reasonably sturdy, with a good B&M-style ball-and-socket joint attaching the mirror to the arm. At a mere £4.99, it seemed silly not to give it a try.
Initially I tried attaching it directly to the B&M arm. In spite of the difference in ball/socket sizes, it sort of worked: while it suffered from droop, it was enough to determine that it gave a much improved view, so I set about fettling the bracket.
I came up with a way to securely mount it to the mudguard stay, and it's been in use there for the last few months. It's survived a couple of knocks as the trike squeezed through narrow gaps, and me tilting it on its side to fix a puncture without remembering to fold the mirror in first. There is no droop and the mirror is easily adjusted by hand, much like a B&M. There is some vibration blur, but not enough to be a problem.
Yesterday I bought a matching mirror for the left side, and documented the bracket mod:
First, dismantle the whole thing. You'll need the parts on the right:
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3390.sized.jpg)
You'll also need a couple of repair washers, an M4 pan-head bolt and nut, and some inner-tube cut to match the washers:
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3395.sized.jpg)
Using a junior hacksaw, cut the post mount down like so, tidying up with a file:
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3400.sized.jpg)
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3404.sized.jpg)
Assemble the parts like this, using the M4 nut and bolt to join the parts of the mount. Trim any excess bolt.
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3407.sized.jpg)
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3412.sized.jpg)
Attach to the mudguard stay, getting the bolt right up into the 'V', and tighten. A cable-tie prevents rotation. This is surprisingly secure.
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3415.sized.jpg)
Then simply fit the mirror. Stealth retro-reflective chevrons optional.
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3421.sized.jpg)
ETA: Not entirely surprisingly the middle joint turns out to be a weak point and is prone to droop. Copious numbers of cable-ties help, but in an attempt to improve things I've taken it apart and covered the whole area in epoxy:
![](http://www.ductilebiscuit.net/gallery_albums/trike_mirror/IMG_3566.sized.jpg)
Other than that, they're still performing fine.
Not bad for a fiver a go
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