The Bell® Adult Primus Bike Helmet is suitable for all your rides whether commuting or taking across town adventures. The Primus is constructed with an in-mold polycarbonate shell for optimal safety and durability, and features large 17 vents for cooling ventilation and comfort. The Ergo Fit™ system is quick and easy to adjust, and ensures a secure fit with a turn of the dial.

FEATURES:

• Best for road biking
• Sleek, compact shape
• Ergo Fit™ system features an easy-to-turn dial that provides an adjustable fit
• Ventilation: 17 vents
• In-mold polycarbonate shell and EPS construction
• Complies with U.S. CPSC Safety Standard for Bicycle Helmets for persons age 5 and older

• Universal Adult Size: 54-61 cm / 21.25” – 24.01”