Bontrager Headmaster II Helmet Fit System
Best replacement dial for cyclists needing to restore their helmet's secure fit.
Don't retire a perfectly good helmet just because the retention dial gave out. This simple replacement part restores that crucial, snug fit in minutes, saving you from an unnecessary full upgrade while keeping your gear feeling secure and reliable for seasons to come.
$19.99
Who it's for
- Cyclists needing a secure, personalized fit on the fly
- Riders seeking optimal comfort and stability on the occipital bone
- Commuters wanting easy, one-handed adjustments while riding
Who should skip it
- Weight-conscious riders preferring the latest, streamlined retention technology
- Mountain bikers needing extreme durability against heavy impacts
- Riders with long hair who frequently wear high ponytails
Performance breakdown
Compatibility precision
Engineered specifically for Headmaster systems, ensuring a flawless, factory-grade fit.
Installation simplicity
Straightforward swap that gets you back on the road in minutes.
Adjustment tactile feedback
Dial mechanism provides satisfying, incremental clicks for secure tensioning.
Material durability
Robust plastic construction withstands daily adjustments and harsh riding conditions.
Sustainability impact
Extends helmet life significantly, preventing unnecessary waste of perfectly good gear.
Retention stability
Locks firmly in place to keep your helmet secure during aggressive rides.
Key Specs
Compatibility
Headmaster I and II fit systems
Installation
User-installable
Type
Replacement fit system
Adjustable
Yes
Color
Black
Part Number
435930
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