Extremus Aerolander Mountain Bike Helmet, Certified Bike Helmets for Adults Men Women, One-Piece Construction Road Cycling Helmet, MTB Lightweight Bicycle Helmet with Visor & Safety Rear Light

Color: Gray
Size: M/L( 23-24in/58-61CM)
Sale price$67.90
Only 10 units left


  • 🚵‍♂️One-Piece Bike Helmet Construction: Extremus cycling helmets adopts a one-piece construction with a shock-absorbing PC material outer shell and EPS inner foam (made in the USA). Its crafted design is not glued together like other MTB bike helmets, and the external shell fully covers the EPS foam, which ensures a longer-lasting durable yet safer structure. This safety technology is lightweight yet super tough and provides all-around protection for your head while riding.
  • 🪖Quick Dry Cooling System & Shock Shield Technology: Our bike helmets for adults has a specially designed Quick Dry Cooling System and Shock Shield Technology to provide extra comfort and maximum protection for your head. The soft liner combines mesh pads with sponge material that improves comfort while also absorbing sweat and cooling your head. And the Shock Shield Technology has a specially engineered silicone cushion that provides enhanced full-spectrum shock absorption in collisions.
  • 🍃16+3 Aerodynamic Ventilation System: This bicycle helmet has a unique mold design that contains 16 aerodynamic 3D vents and 3 extra vents on the forehead section. This streamlined construction maximizes airflow, prevents overheating, and increases aerodynamic efficiency while also ensuring security. The road bike helmets includes a padded adjustable chin strap for a safer and smoother ride.
  • 🚴‍♀️Size Adjustable Dial + Safety Lights: Our road bike helmets for men and women has a convenient size adjustable dial: using one hand, turn the dial on the back of the helmet to adapt the built-in helmet framework for a perfect fit. The integrated dial includes a red rear safety light that has three lighting modes: slow flash indicator, fast flash SOS, and normal night mode. With one-hand adjustability, you don’t need to remove the helmet to tighten the fit or change the light.
  • 🧗Multifunctional Design Bicycle Helmet: This mountain bike helmet includes a thick detachable sun visor that extends twice as long as other helmets, which provides you more sunshade and extra protection during riding from overhead branches. Simply snap on the visor to lock into place, or detach and store the visor when not needed.The soft protective interior liners are also removable for hand washing in between rides.Perfect for cycling, biking, skateboarding, rollerblading, or scootering.

Product Description

Complies with U.S. CPSC Safety Standard

Extremus Mountain Biking Helmet

Extremus is a registered brand, which devotes to develop sport protective equipment. We commit to providing safety and comfort for you during outdoor activities. Go and explore your extreme talent!

  • 1 x Extremus bike helmet
  • 2 x Inner padding
  • 1 x Large Sun visor
  • 1 x Built in rear light

Why Choose the Extremus Aerolander Bike Helmet?

Ready to Go the Extra Mile!!

  • Our MTB bike helmet is made as a one-piece construction with an ultra-light PC outer shell, which is super strong and durable.
  • It has a special ventilation system with 16 large 3D vents and 3 extra vents on the forehead section that allow for continuous airflow to keep you cool and comfortable.
  • The road bike rear light battery can be replaced by yourself.


  • EPS foam with in-mold polycarbonate shell
  • Soft, removable, washable, padded liner
  • Removable Big sun visor
  • Compact shape
  • Reflective strip
  • Safety rear light
  • Lightweight: 370g

Reliable Security-360° Protection

The full-coverage design of this adult mountain bike helmet provides a higher level of all-around protection for the head, including the back. Suitable for a wide range of sports types

Detechable Sun Visor

The bike helmet with visor is suitable for mountain biking. And it is suitable for road biking without the visor. Please align the center nail of the sunshade first, and then tighten the screws on both sides. Our Visor is bigger than others

Adjustable Size

This universal adults youth bike helmet suitable for men and women.

S/M:21.25-22.83in / 54-58cm head circumference

M/L: 22.83-24in / 58-61cm head circumference

Payment & Security

Payment methods


Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


Estimate shipping


Recently viewed