Helmet mount handlebar Mountainbike Uphill

Edit 19.09.25: I installed a new stem, the e*thirteen Plus 35 Stem, with a length of 40 mm. Accordingly, I adjusted the mount to a height of 6 mm. I also reduced the radius of the hook and made it a little longer, so the fidlock closure holds better

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I think it's a common problem among mountain bikers that they don't really know where to put their helmet uphill. Especially if they have a full-face helmet with them but no backpack.

It always bothered me to put the helmet on the handlebars through the chin bar. The previously offered mounts for attaching it to the handlebars or stem didn't convince me.

So I designed my own mount for the headset. The chin strap or fastener of the helmet can be easily clamped into the mount.

In my experience, the helmet is thus secured via the headset and handlebars and doesn't slip sideways. The back part of my helmet rests on the outer housings for the brake and shift cables. This dampens the oscillations and vibrations.

I use the 50mm Aeffect R 35 stem from Race Face. With a height of 2mm, the mount rests on the stem with slight tension. This prevents rattling during movement.

I made the final version with PA12-CF. But it also works great with PETG. I created and tested the prototypes with PETG. With PETG, I used three wall lines. This makes the mount quite flexible. Nylon is very stiff with three wall lines, so here I use two lines.

No support is required. However, I recommend a brim for better print bed adhesion. I'm not a fan of glue.

Happy Printing