Proper helmet fit is vital to the performance of a helmet during an impact. For maximum protection the helmet must fit properly with the chin strap securely fastened and provide adequate peripheral vision.
Measuring the head is only a starting point for the entire sizing procedure. Due to varying shapes, heads that are apparently the same size when measured by a tape may not necessarily fit the same size helmet.
A small metal tape measure or a cloth tape may be used to make your initial measurement. You can also use a string, which can then be laid against a measuring tape.
The circumference of the head should be measured at a point approximately one inch above the eyebrows in front, and at a point in the back of the head that results in the largest possible measurement. Take several measurements. The largest measurement is the one you want to try on first. If you use a balaclava or head sock, always measure and fit the helmet with it on. Use the Bell sizing chart to determine the size that best matches the head measurement.
|Standard Size||Hat Size||Inches||Centimeters|
|4XS||6 3/8||20 1/16||51|
|3XS||6 1/2 - 6 5/8||20 1/2 - 20 7/8||52-53|
|2XS||6 3/4 - 6 7/8||21 1/2 - 21 5/8||54-55|
|S||7 1/8||22 3/8||57|
|M||7 1/4 - 7 3/8||22 3/4 - 23 1/4||58-59|
|L||7 1/2||23 5/8||60|
|XL||7 5/8 - 7 3/4||24 - 24 3/8||61-62|
|2XL||7 7/8 - 8||24 3/4 - 25 1/4||63-64|
|3XL||8 1/8 - 8 1/4||25 5/8 - 26||65-66|
|4XL||8 3/8 - 8 1/2||26 3/8 - 26 3/4||67-68|
When properly fitted, the helmet should be worn low on the brow, the eyes near the center of the eye opening, touching the top of the head with uniform and firm pressure all around - tight without excessive pressure points. Consult the How To Fit A Helmet page on the Bell Racing website for more information.
Moto-9 Youth MIPS
With the next generation of boundary breakers in mind, we've developed our first dedicated youth off-road helmet "-" moms and dads rejoice! The Moto-9 Youth MIPS offers full-grown protection in a youth-sized package. Sharing the same DNA as the adult version, the Moto-9 Youth MIPS uses a lightweight Tri-Matrix shell and MIPS for additional rotational energy management in some impacts. The removable, washable interior padding, along with 10 vents and 3 brow ports, ensure they stay cool and comfortable whether they're putting in laps at the local track or in your backyard. Our goal is to help protect your young rider so you can breathe easily as they explore their limits, no matter the ride.