Marquee

Essentials

Whether you are seeking safety, security, comfort, or fitness, we have the essential items to help you ride longer, ride faster, and ride safer.

Road

Short rides or long, here are some items to keep you rolling comfortably and prepare you for what Mother Nature may throw your way.

GO

Mountain

Ride longer, harder, and have more fun with this list of essential items for the dirt lover in all of us.

GO

Triathlon

Both short distance and Ironman triathletes can benefit from proper hydration and aerodynamics. Here are a few products to speed you to the next transition.

GO

Town

Twenty minutes of traffic or ten minutes by bike? Remove the guesswork with essential items designed to make your ride more comfortable, more secure, and more fun.

GO

Kids'

You love them. And they love to ride. Keep your little one(s) safe, happy, and outfitted for fun with these essential items from Bontrager and Trek.

GO

Learn more about the RXL Hilo triathlon shoe.

Learn more about the RXL Hilo triathlon shoe.

RXL Hilo is focused on getting triathletes to the run fresher and faster by helping them save both precious time and precious energy.

GO

Fabian Cancellara upgraded. So can you.

Upgrade to the new, cooler you.

Discover Oracle. Massively ventilated, carbon fiber-reinforced protection for your head.

GO

Universal Sizing

Measure the circumference of your head using a cloth tape measure or a piece of string and a ruler. Use the chart below to find the proper helmet size based on your measurement.

cm 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  Toddler                        
    Youth              
        Women’s          
                  Men’s

1 Head

Take your measurement horizontally across your brow and over your ears.

Pro Sizing

Measure the circumference of your head using a cloth tape measure or a piece of string and a ruler. Use the chart below to find the proper helmet size based on your measurement.

cm 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
  Small                  
          Medium            
                  Large    
                      X-Large

1 Head

Take your measurement horizontally across your brow and over your ears.

Convert Sizing

Measure the circumference of your head using a cloth tape measure or a piece of string and a ruler. Use the chart below to find the proper helmet size based on your measurement.

cm 53 54 55 56 57 58 59 60
  Small            
      Medium        
          Large    
              X-Large

1 Head

Take your measurement horizontally across your brow and over your ears.

Ride it and love it. If not, we’ll take it back.

Ride it and love it. If not, we’ll take it back.

It’s that simple.

If for any reason you’re not satisfied with your Bontrager products, return the item - along with the original sales receipt - to the place of purchase within 30 days of purchase date for exchange or store credit.

RADIOSHACK NISSAN TREK rides Bontrager

RADIOSHACK NISSAN TREK

GO