How to Choose a Mountain Bike Helmet

Advice on Buying Cycling Helmets for Off-Road Riding

© Helen Smeaton

Apr 30, 2009
Giro Havoc Mountain Bike Helmet, Wiggle.co.uk
Mountain Biking can be dangerous so wearing a cycling helmet is a necessity for maximum safety. Which one to choose depends on riding style so here's some advice.

Whilst many leisure and road cyclists choose not to wear a cycle helmet for comfort or vanity reasons, mountain bikers almost always wear a “lid” as even the most careful of riders can fall off when least expected.

Mountain bike helmets are made from polystyrene, which crushes easily on impact and absorbs energy, thereby protecting the skull. Unlike a motorbike helmet, they have air flow vents to keep the rider cool and usually a visor to protect the rider from sun glare or rain on the face.

Cycling helmets have to conform to certain safety standards, the Consumer Product Safety Commission or CPSC in the US and EN1078 in the EU. There are other more demanding standards such as the Snell BS-90, a specification for higher quality helmets but CPSC and EN1078 cover the vast majority of helmets sold.

How Much Does a Mountain Bike Helmet Cost?

Prices start from around $25 for a basic helmet with some air vents and a sun visor. These are often referred to as leisure cycling helmets and are fine for recreational off-road cycling at a moderate pace. So called performance mountain bike helmets, however, are far more expensive with prices ranging from $50 to $150 for multiple vents and specific design characteristics for long hard days in the saddle.

Key Features of Mountain Bike Helmets

Look for certain design features when considering a helmet purchase:

  • Number of vents and positioning on sides and rear of helmet. Additional vents increase air flow so choose a style that offers the most cooling power for the type of riding preferred.
  • Sizes available. Cheaper helmets tend to be one-size only whereas more expensive models come in 3 and even 4 sizes suitable for riders with extra large heads.
  • Fit adjustment mechanism. These differ by brand so look for a system that is easy to use and offers fit adjustment both laterally and vertically if possible. Always try on a helmet for perfect fit before purchase.
  • Inner ring mechanism. Usually featured on higher end helmets, this allows greater customization of fit and added comfort.
  • Removable and adjustable sun visor.
  • Anti-pinch buckle on neck strap.
  • Padding made from a breathable material such as Coolmax to soak up sweat, which should be easy to remove for washing.
  • Weight. As with most mountain bike gear, the lighter the product the higher the cost but weight can be important for racing or for riding in hot countries.
  • Easily adjustable straps for a perfect fit.
  • Availability of spare parts, such as pads or inner ring systems which can wear out easily.

Mountain Bike Helmet Brands

Giro, Met and Bell offer high quality cycle helmets across a wide price range. Giro are the market leader with their innovative Rocloc mechanisms but it is worth trying a variety of models for perfect fit as no two heads are the same.

Buying a Helmet for Off-Road Cycling

Decide on the key features needed to suit either a leisurely or hard style of riding and choose a helmet in the size to fit whilst checking practicality of design for easy maintenance.

Related Articles

You may be interested in our articles How to Fit a Cycle Helmet and Why Wear a Cycling Helmet?


The copyright of the article How to Choose a Mountain Bike Helmet in Bicycle Gear is owned by Helen Smeaton. Permission to republish How to Choose a Mountain Bike Helmet in print or online must be granted by the author in writing.


Giro Havoc Mountain Bike Helmet, Wiggle.co.uk
Bell Ukon Cycling Helmet, Wiggle.co.uk
Giro Indicator Cycle Helmet, Wiggle.co.uk
Full Face Mountain Bike Helmet, Chainreactioncycles.co.uk
Met Predatore Extra Large Cycle Helmet, Wiggle.co.uk


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