Cycle analyst CA3 holder/bracket for a 31.8mm MTB stem/handlebar

albanderv

1 µW
Joined
Apr 17, 2019
Messages
4
Hi all,

When purchasing my CA3 from Grin, I faced the problem of how to attach it to my bike.
I have an hybrid bike with a MTB 31.8mm handlebar, and the bracket that came with it did not fit the width of my handlebar.

Grin proposes a steer tube bracket, but it was out of stock. A 3d printed bracket would have been a solution if I had access to the correct plastics. My first trial with PETG broke after a few weeks in Montréal's famous potholes.

So there it is, my design in sheet metal for anyone to use. I'm really pleased with the final result, it is easy to install and it's very sturdy. The handlebar is still firmly held in place because the second part is smaller ad rotates around the stem. So you can torque the top first, and still have plenty of room to tighten the handlebar.

I've used 3.1mm (1/8") aluminium, and the only tool I've used were: a vis, a metal saw, a drill and a file. Really esay to do and really easy to manufacture at a larger scale.

2021-03-31_10h05_48.png
2021-03-31_09h48_20.png
2021-03-31_09h47_48.png
2021-03-31_09h48_20.png

The PDF is attached to the post
2021-03-31_10h07_50.png

And the final implementation:
IMG_20210307_194820.jpg
IMG_20210307_194848.jpg
 

Attachments

  • holder.pdf
    243 KB · Views: 43
Thanks for posting this; there are mounting situations where it would work better than the type Grin sells to go under the steerer cap:
https://ebikes.ca/ca-steerbracket.html
CA_SteerBracket.jpg
 
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