Bell Sixer Mips Ratio MTB Cycling Helmet











- Mips Evolve is designed to reduce rotational forces that can result from certain impacts. By integrating the Mips slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head.
- Custom fit at the highest performance, this fit system seamlessly integrates with Mips® and offers three‐way adjustability: height, pad width, and tension.
- The process of engineering a helmet liner with variable EPS foam densities to better manage the transfer of energies after some impacts.
- Actively ushers cool air over the head and regulates temperature by drawing cool air into the intake ports and circulating it through a matrix of air channels.
- 4‐position adjustable visor allows for sun protection and easy goggle storage. The no‐slip design allows on‐the‐fly adjustments so you can position your visor at the desired angle with a simple tug up or down.
- Seamless camera mount, requiring no zip ties or tape, is engineered to “break away” upon impact to reduce the risk of injury.
- Quick‐adjust fasteners that help keep straps flat and properly positioned
- Quick‐drying interior padding helps manage sweat while fighting odor‐causing bacteria.
- Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear.
- Rubber grip on the back of the helmet keeps your goggle strap in place.
- CE EN178
- 395 gr. (size M)
- 4% PC, 63% EPS, 3% POM, 5% Polyester, 5% PP, 12% PA, 3% AL, 4% TPR
Occasionally, without notice, manufacturers change product design and/or specifications.
Bell Sixer Helmet Size Guide
|
Size |
Cm |
Inches |
|
S |
52 – 56 |
20 ½” – 22” |
|
M |
55 – 59 |
21 5/8” – 23 ¼” |
|
L |
58 - 62 |
22 ¾” – 24 3/8” |
|
XL |
61 - 65 |
24” – 25 5/8” |
How to measure
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.
Once you know the circumference of your head, select a size with a range that your head size fits within.

As well as an adjustable chin strap the majority of cycling helmets have some form of adjustment for size, usually in the form of a ratchet adjuster to tighten or loosen the headband or replaceable pads of different thicknesses.
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