• -35%
  • -35%
Bollé - Trackdown

Bollé - Trackdown

3 - 5 days

Bollé - Trackdown


Size Guide helmets

Do you want your helmet to sit correctly on your head?

Then measure your head circumference in centimeters before buying. Take a flexible tape measure, place it at the widest point at the back of your head, run it over your ears and hold it together about 1 to 2cm above your eyebrows. Read the head circumference in centimeters - cm - and find your size in the size chart. Please compare the information again with the item description. Alternatively, you can determine the head circumference with a thread or string. Put the thread around your head in the same way and simply read off the measured length on a ruler.

This is an approximate conversion chart to help you find your size.

Head Circumference cm Size
49-50 XXXS
51-52 XXS
53-54 XS
55-56 S
57-58 M
59-60 L
61-62 XL
63-64 XXL

                Reithelm Kopfumfang messen

Size Guide
1 item(s) left in Stock
colour: black
size: S (52 - 55 cm)
Last items in stock

Helmheld.de - Have a look service

You are uncertain about size, color and fit, then use our Have a look service => Try three helmets of your choice and find the best helmet for you.



Your all-new mountain bike helmet from Bollé - Trackdown Mips with unique features. The 360 ??° Fit system ensures stability and very good adjustability. AViD Progressive EPS combines channels for optimal ventilation with progressive shock absorption. Opti-Dock system for safe storage of sunglasses while driving and a 3-position visor makes room for goggles. An innovative winter kit with ventilation covers and winter lining complete the helmet.


Bollé - Trackdown - Benefits:

  • very good seat
  • available with mips technology
  • light and aerodynamic
  • Visor adjustable

Bollé - Trackdown - Features:

  • Suitable for: mountain bike
  • not shown: Vent Caps - Incl. Covers for the upper vents for bad weather conditions
  • Construction: Click-to-Fit System - Height-adjustable adjustment system
  • Upholstery: removable and washable padding
  • Construction: CLICK-TO-FIT ™ SYSTEM - The Click-to-Fit ™ system allows precise adjustment of the inner lining.
  • Construction: AVID Progressive EPS - A mix of different dense EPS ensures that both strong and light impacts are optimally intercepted. At the same time, the material remains light and allows the best possible ventilation
  • Construction: Sunglasses Garage - Sunglasses can be safely plugged in and held in the outer air intakes
  • Color appearance: matt
  • Closure: Buckle
  • Visor: The visor is adjustable in 3 positions and therefore adaptable to all conditions. Even glasses can still be placed on the helmet when the visor is raised
  • Insect protection: no
  • Size: S (52-55 cm), M (55-59 cm), L (59-62 cm)
  • Weight: 390 g in size M
  • Certification: EN 1078, A1: 2013
  • Gender: Unisex

Bollé - Trackdown - Reviews:

  • not yet

Bollé - Trackdown - scope of delivery:

  • helmet
  • Winter kit with ventilation covers and winter lining

Data sheet

headsize in cm
52 - 62 cm
helmet with visor

Specific References

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Bollé - Trackdown

€100.83 €65.54