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Drilling a helmet for a chin guard

post #1 of 6
Thread Starter 
I have a Briko Forerunner helmet without holes for a chinguard. If I just purchase the chin guard and drill the holes, will I be set to go? Or will I need to add some kind of threaded insert?

-T
post #2 of 6
I did this last season on the same helmet. You need threaded inserts and the screws that go into them. They don't need to be made by Briko. Just head to a good shop and ask for some. To install then, just drill snug holes and press-fit them in and you'll be good to go.
post #3 of 6
Thread Starter 
Exactly what I wanted to know. Thanks!

-T
post #4 of 6
I guess I am revealing my structural engineering incompetence here. We just drilled holes and attached the chin guard. That was two seasons back. Will these threaded inserts be better in protecting the helmet? I would think you'd just have to make bigger holes then to accommodate the insert, thereby further weakening the helmet?
post #5 of 6
The part of the helmet that you drill isnt an integral part of the head-saving section of the helmet. Ihave seen it done a lot and never seen any adverse affects from it. I have seen helmets crack in half, but not from drilling holes to attach a chin bar. As long as the holes are clean and no cracks develop during the drilling process, you should be okay. I have seen it done with and without threaded inserts - and even with hardware store materials.
Later
GREG
post #6 of 6
Quote:
Originally Posted by sibhusky
I guess I am revealing my structural engineering incompetence here. We just drilled holes and attached the chin guard. That was two seasons back. Will these threaded inserts be better in protecting the helmet? I would think you'd just have to make bigger holes then to accommodate the insert, thereby further weakening the helmet?
Really depends on the helmet. I use teenuts on some, and other types of speednuts on others. Here is a teenut:

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