Kids · Boys'
Size-matched helmets for 6 year olds, with color and style notes typically preferred by boys in this age range. Fit remains the priority — pattern and color second.
Open the helmets calculatorSix-year-olds are typically in the transition zone between 16" and 20" wheel bikes. Most average-height children this age still fit a 16" bike well, while taller 6-year-olds (over 118 cm) may be ready for an 18" or even a 20" bike. At this age, nearly all children should be riding without training wheels. Hand brakes should be introduced if they haven't been already — look for levers with adjustable reach that are sized for small hands. The saddle should allow your child to touch the ground with the balls of their feet, though not necessarily flat-footed. A single-speed drivetrain is still ideal for most 6-year-olds; gears add unnecessary complexity unless your child rides hilly terrain.
Measure head circumference at the widest point across the forehead. Most brands size: XS (50–53 cm), S (53–56 cm), M (56–59 cm), L (59–62 cm), XL (62+ cm). Kids helmets typically start at 47–50 cm. Always try before buying; fit varies by brand.
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Giro
S 51–55 cm, M 55–59 cm, L 59–63 cm
Bell
S 52–56 cm, M 56–60 cm, L 60–64 cm
Smith
S 51–55 cm, M 55–59 cm, L 59–63 cm
Poc
S 50–54 cm, M 54–58 cm, L 58–62 cm
Lazer
S 50–54 cm, M 54–58 cm, L 58–62 cm
Kask
S 50–54 cm, M 54–58 cm, L 58–62 cm
Troy Lee Designs
S 53–56 cm, M 56–59 cm, L 59–62 cm
Abus
S 52–58 cm, M 58–64 cm
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