Bontrager Helmet Fit System - Micro Manager II

This replacement part is designed specifically for Bontrager helmets that originally came equipped with the Micro Manager I or II fit systems. Check the inside of your current helmet or your owner's manual to confirm your model uses this retention system.

Installation is generally straightforward and typically requires only basic tools or simple manual manipulation to snap the new system into place. If you are comfortable with basic bike maintenance, you should be able to swap the system without professional help.

This product is designed as a direct replacement fit system. It integrates with your helmet's existing hardware, so you should retain the original screws or mounting points from your helmet when performing the swap.

Yes, this Micro Manager II system is backward compatible with helmets that originally featured the Micro Manager I fit system. It serves as a functional upgrade or replacement for those earlier retention designs.

If your helmet shell and foam liner are still in good condition and haven't been involved in an impact, replacing just the fit system is a cost-effective way to restore the helmet's stability and comfort. It ensures the helmet sits securely on your head, which is critical for safety.