Bell Bike Formula LED MIPS Bicycle Helmets

Cycling is safer when you’re seen. This advanced road cycling helmet seamlessly integrates a bright 20-lumen rear LED light into the fit system, combining style, safety, and everyday practicality for commuting and training alike.

Safety and Visibility Built In ✅

Integrated LED Light: A highly visible 20-lumen rear LED helps you stand out in low light and night riding.
Rechargeable Convenience: The light is unobtrusive and easily recharged via micro USB (cable included).
Mips Evolve: Multi-Directional Impact Protection System helps redirect impact energy in certain crashes.
Integrated Reflectivity: Built-in reflective details enhance visibility to motorists.
Fusion In-Mold Construction: A durable shell fused to an EPS liner for reliable protection and a sleek, lightweight feel.

Comfort That Adapts to You ✅

Float Fit LED System: Lightweight, secure fit with easy one-handed adjustment—and the rear light integrated right where you need it.
Everyday Practical: Road-ready comfort for commuting, fitness rides, and weekend miles.
Featherweight Feel: Optimized for low weight without compromising protection.

Choose a helmet that elevates visibility, protection, and comfort in one sleek package—perfect for riders who want enhanced safety and performance on every ride.

Helmet Size Chart (CM, Inches, and Hat Size)

How to Measure Your Head for a Helmet

Use a flexible tape measure (tailor's tape).
Wrap the tape around the largest part of your head—approximately 1 inch (2.5 cm) above your eyebrows and ears.
Ensure the tape is level all the way around and pulled snugly, but not too tight.
Read the measurement in both centimeters (CM) and inches (IN).
Compare your measurement to the chart below for the correct helmet size.

SAFETY WARNING: Do not guess your size. For maximum safety and protection, a helmet must fit snugly and securely.

STANDARD HELMET SIZING

Helmet Size	Head Circumference (CM)	Head Circumference (Inches)	Traditional Hat Size (IN)
S	52 – 56	20 1/2" – 22"	6 1/2" – 7"
M	55 – 59	21 5/8" – 23 1/4"	6 7/8" – 7 3/8"
L	58 – 62	22 7/8" – 24 3/8"	7 1/4" – 7 3/4"

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Bell Bike Formula LED MIPS Bicycle Helmets

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