A double D-ring closure system works by threading the strap through both D-rings, then back through only one of the D-rings, creating a secure and adjustable loop when tightened.
Here's a breakdown of the process:
- Threading: Pass the strap through both D-rings.
- Returning: Take the strap end and thread it back through only one of the D-rings. This effectively splits the D-rings.
- Tightening: Pull the strap to tighten the closure. The friction created by the strap against both D-rings provides a secure hold. Adjust the tightness to a comfortable and safe level.
- Securing: Once tightened, the excess strap is typically secured with a snap or other retaining device on the strap itself to prevent it from flapping around.
The double D-ring system offers a secure and adjustable fit, making it a common choice for helmet closures. The friction between the strap and the rings prevents slippage and ensures the helmet stays securely fastened.
