description Bell Annex MIPS Overview
The Bell Annex MIPS is a mountain bike helmet featuring Multi-Directional Impact Protection System (MIPS) technology, a slip-plane system designed to reduce rotational forces on the brain during angled impacts. The helmet includes a removable visor to shield riders' eyes from sun, rain, and trail debris, along with ventilation channels that improve airflow during intense riding. Bell, established in 1954, is one of the most established helmet manufacturers in cycling and motorsports, and designed the Annex specifically for trail and enduro riding, which involves technical terrain requiring enhanced protection features compared to recreational cycling.
help Bell Annex MIPS FAQ
What does MIPS actually do in the Bell Annex helmet?
MIPS is a low-friction slip-plane layer, developed by the Swedish safety company of the same name, that allows the helmet to rotate slightly around your head during an angled impact. The idea is to reduce the rotational forces transferred to the brain, which is how many real-world MTB crashes occur.
Is the Bell Annex suitable for trail riding and commuting?
The Annex is an off-road oriented helmet with extended rear coverage and a removable visor, making it well suited to trail riding. Plenty of riders also use MTB helmets like it for commuting since the visor snaps off easily for road use.
How should the Bell Annex MIPS fit?
Bell, one of the oldest names in cycling helmets, sizes the Annex by head circumference, and you want it snug enough that it doesn't wobble when you shake your head with the strap unclipped. MIPS adds a few millimeters of interior thickness, so it's worth trying your usual size before buying.
When should I replace a Bell MIPS helmet after a crash?
Any helmet that has taken an impact, even if the shell looks fine, should be replaced because the EPS foam is designed to compress only once. Many riders replace helmets every few years regardless, as foam and straps degrade over time.
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