Abus Urban-I 3 Visier Adapter

This model brings printed adapters that allow you to attach a magnetic visor to hopefully any bike helmet that does not come with a visor option. 

The background of the story is that for my head size (larger than 63 cm), there are only very few helmets on the market. I'm happy that I found one that is comfortable up to 65 cm. This is the "Abus Urban-I 3.0". But, unfortunately, it does not come with a visor option. As I still prefer wearing my standard glasses during a ride, I desperately searched for a solution. Nothing was available, so it was time for a new hacking approach.

I bought the visor "Victgoal Photochromic Goggle". There are multiple versions of it. I went for the photochromic one that adapts to sun brightness. The prices are reasonable and vary from 12€ to 20€. Victgoal itself has pre-equipped helmets that allow you to snap the visor to metallic or magnetic helmet inlays. My idea was to buy matching magnets, put them in appropriate PETG-printed housings, and glue these to my own helmet.

There was some risk that either the visor would not fit perfectly to non-Vicgoal helmets - here my "Abus Urban-I 3.0". Also, I was not sure if the geometry would fit so that my glasses still fit behind, the visor would not touch my nose, the magnet housing would reliably hold glued to my helmet, and the like. But - hurray - everything just works! Give it a try if you're also unlucky with the market offering, just want a functional, not pricey visor update for your helmet, or whatever...

What you might want to change on your setup is the angle of the housings (left and right). I used this angle to allow for a planar attachment surface on the helmet rim. Either you can turn the housings to an angle where the visor can be attached without stress on the visor itself. If it still does not fit, you can modify the angle to fit your situation. Fusion source is included.

For attaching the magnet housing to the helmet, I did not want to use screws or to drill holes into the helmet because of obvious safety reasons. The best glue option has been to use "3M VHB 5952F Montage Klebeband doppelseitig" which keeps its smoothness and can adapt to the non-100% planar attachment area. Perfect!

The 3 magnets I used are from "FINDMAG 50 Stück 12 mm x 3 mm". I used the same tape to glue the magnets into their housings. When finding the right glue position and turn for the angled left and right housing, use a marker to sign the position on the visor and housing so that you can concentrate on gluing without needing to find the right turn position in one step.

Use PETG or better because of temperature and UV light.

Have printing and biking fun with my hack!

PS: A nice side effect that worked unexpectedly is that the visor can either be turned and just fixed to the helmet top or be pushed back, e.g., for taking on or off your glasses. You can see this in one of the pictures. In this case the left and right magnets still keep the visor on the helmet. But you have to hold it, because otherwise it would just snap back in place.

PS: As I invested time in this bike helmet solution, I also wanted a more functional bike helmet rear light. You too? Then visit my remix below!

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