TRACKDOWN

Show Product Information
Reference
31613
Fit
s-52-55
Dimensions
Weight
1g
Product Material
PC
Frame Colour
Tricolor Matte
Colour
tricolor-matte_no-lens-reference
Lens Material
Lens Name
No Lens Reference
Additionnal Lenses
Lens Category
Additionnal Lens Category
VLT
VLT Additionnal Lens
Lens Shape
Photochromy
Polarization
High Contrast
Base Tint
Mirror Tint
Lens Coating
Technologies
360° Fit System / AVID Progressive EPS / Vent Caps
Base
MIPS
Fit System
Ventilation
Removable Paddings
Available with RX
No
Interchangeables Lenses
Included Accessories
Certifications
No technical sheet to display
A completely new mountain bike helmet from Bollé with a unique set of features. A 360° retention system for stability and full adjustability. AViD progressive EPS to combine channels for superior ventilation with progressive shock absorption. A Sunglasses Garage to hold your sunglasses in place and a 3-position visor allowing space for goggles. An innovative Winter Kit containing vent caps and winter lining.
FitGuide

PROGRESSIVE EPS

MAXIMUM VENTILATION WITH HIGH PROTECTION

Image casque 2
Image casque 3 Image impacts

A MIX OF ACTUAL AND VIRTUALLY DIFFERENT DENSITIES EFFECTIVELY MANAGES DIFFERENT KINDS OF IMPACTS

Image faible densité Low Density Foam
Image haute densité High Density Foam

To create helmets that perform against all types of impacts, the details are key. High-density EPS ensures that high energy impacts are effectively absorbed. Low-density EPS, however, provides superior performance against less severe impacts. Bollé helmets with AViD liner technology use a combination of different EPS densities and/ or optimization of the ventilation channels to virtually decrease the density in the upper area. The result is a lighter, better-ventilated helmet with progressive shock absorption that will absorb a wider range of impacts*. (Available on the Trackdown & Instinct.) *compared to a standard EPS liner with uniform thickness.

1

Low Density Foam: Optimum absorption at medium impact energy, may compress completely in high energy impacts.

2

High Density Foam: Imcomplete compression at low impact energy, optimum absorption at high impact energy

Ventilation channels: virtually decrease density

1
&
2

Actual densities