Different Motorbike Helmet Buckles…..

A motorcycle helmet buckle is the part on the end of the helmet strap that, when the 2 parts are connected together, holds the helmet securely on your head.
There are (in very basic terms!) 3 different motorbike helmet buckles, the quick release buckle, the ‘Double D’ buckle and the micro metric buckle……

The Quick Release Style Helmet Buckle

Quick release helmet buckle in helmet
View of a closed quick release buckle on an AGV helmet.

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Quick release helmet buckle close up
Close up view of a closed quick release buckle on an AGV helmet.

Open quick release helmet buckle
A quick release buckle in the ‘open’ position on an AGV helmet.

Open quick release helmet buckle close up
Close up view of an open quick release buckle on an AGV helmet.

The quick release buckle (also known as the seat belt style buckle) is an easy to use buckle where a metal end part (usually with a hole in it) goes into a spring operated catch (this system works similar to a seatbelt on a car).
The strap length is usually adjusted using metal length adjusters on the strap. Although the buckle pictured above on an AGV helmet is difficult to operate with gloves still on, there are many different versions and styles of this buckle, some of which can be operated with gloves on (these usually have a push button opening mechanism).

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The Micro Metric Style Helmet Buckle

Micro Metric helmet buckle in helmet
View of a closed Micro Metric buckle on a Nitro helmet.

Close up view of a Micro Metric helmet buckle
Close up view of a closed Micro Metric buckle on a Nitro Motorcycle helmet.

View of an open Micro Metric helmet buckle
View of an open Micro Metric buckle on a Nitro Motorcycle helmet.

Close up view of an open Micro Metric helmet buckle
Close up view of an open Micro Metric buckle on a Nitro Motorcycle helmet.

The ‘Micro Metric’ buckle system works by using a ‘toothed’ tad on the end of 1 strap which goes into a spring operated ratchet on the end of the other strap (the basic principle of this system is similar to a reusable cable tie).
The Micro Metric buckle can be operated with gloves on and the strap length is normally adjusted by using metal length adjusters on 1 of the straps. The fitment and length of the strap can be fine tuned using the toothed tab and ratchet system (the toothed tab doesn’t have to go all the way into the ratchet to be closed). Micro Metric buckle explained in full….

The Double D Style Helmet Strap

Double D helmet strap
View of a closed Double D strap on an Arai helmet.

Double D helmet strap close up
Close up view of a closed Double D strap on an Arai helmet.

Open Double D helmet strap
View of an open Double D strap on an Arai helmet.

Open Double D helmet strap close up
Close up view of an open Double D strap on an Arai helmet.

The ‘Double D’ helmet strap system is probably the oldest, simplest and (arguably!) the safest strapping system for motorcycle helmets.
The Double D system doesn’t contain any ratchets and works by putting 1 end of the strap through both of the metal ‘D’ rings on the other strap, then looping the strap back through the 1st ‘D’ ring to secure it.
Although the downside of this system means it is very difficult (or near enough impossible!) to operate with gloves on, the simple design means it hardly ever fails and always has to be adjusted to the correct tension when you put the helmet on.

If you’ve got any questions or know of any buckle styles we’ve missed please leave a comment below…..

5 thoughts on “Different Motorbike Helmet Buckles…..”

  1. Worth reaidng. However nothing to say about safety. For protection and safety, a helmet is the first gear that you will need while riding. Not every time you will get a crash, but the safety must be assured. Studies and researches say that the riders wearing helmets are less likely face crashes. I don’t need to mention that the properly constructed motorcycle helmets will save you from serious head and neck injury.

    1. This article wasn’t about helmet safety……

      You can read more about some aspects of helmet safety on the pages below:

      http://www.whitedogbikes.com/whitedogblog/inside-full-face-motorbike-helmet/

      http://www.whitedogbikes.com/whitedogblog/inside-a-flip-front-motorcycle-helmet/

      http://www.whitedogbikes.com/whitedogblog/motorbike-helmet-road-legal-uk/

      Just out of interest……

      “Studies and researches say that the riders wearing helmets are less likely face crashes”

      Any links to back up this quote? 🙂

    1. Not without alot of modification to the helmets strap. You would need to cut the strap or threads to get the old double D buckle off then attach the new micro metric buckle and re stitch the strap. Not something I’d really recommend doing as the last thing you would want is the stitching coming undone in an accident if it wasn’t secure enough!

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