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  • Bontrager Gnarwhal Fat Bike Tire
  • Bontrager Gnarwhal Fat Bike Tire
Overview

Go slashing through the snow

When bite and traction are required above all else, this tire keeps you moving. Roll through the roughest terrain and deepest snow with the stud-ready, aggressively treaded Gnarwhal. Available to fit both 26 and 27.5 wheels, this versatile tire can be ridden with or without studs to add traction to even the slipperiest winter riding conditions.

Product details

  1. A fat bike tire that excels in snow, ice, and slippery terrain
  2. Aggressive and siped tread provides traction in even the slickest conditions
  3. Tubeless Ready (TLR) for easy tubeless setup and puncture protection
  4. Inner Strength casing is lightweight sidewall protection that's supple and strong
  5. Studdable design allows for added traction in icy conditions
  6. Easy install of available Bontrager Tire Studs with Bontrager Tire Stud Tool
  7. 27.5" tires can accept 216 studs, 26" tires can accept 160 studs
How To: Fix a Flat Bike Tire

How To: Fix a Flat Bike Tire

Flat? Fixed. Our simple how-to video will show you how to get back on two wheels in no time flat.

Watch video
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"A lot more gnar"

"Adding 160 tungsten studs to the Gnarwhal clearly adds a lot more gnar, not to mention a lot more bite in icy conditions"

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5/5 stars

"A very good low weight fast rolling tire that works well all around on hard packed snow,loose snow and icy sections"

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"Celebrate!"

"The Gnarwhals handled [those] conditions with ease and cat-like traction"

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"Outrageous traction"

"Testers were pleasantly surprised that there wasn't more rolling resistance while riding the Gnarwhal tires"

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More options

Bontrager Barbegazi Fat Bike Tire

Bontrager Barbegazi Fat Bike Tire

$119.99 

Cheng Shin Kids' + MTB Tire

Cheng Shin Kids' + MTB Tire

$29.99 

How to change a flat tire

Flats happen, learn how to change your tube quickly so you can get back rolling.

Learn more

How to pump up your tires

Setting your bike’s tire pressure correctly will give you a more comfortable ride with better grip and handling. Learn how.

Learn more

NICA story

Trek is committed to changing the world by getting more people on bikes, and it starts with sending kids down the right trail. We’ve pledged $1 for every MTB tire sold, totaling over $1 million in support to the National Interscholastic Cycling Association, the governing body for middle- and high-school mountain biking in the US.

Read more

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Features
30-Day Unconditional Guarantee

30-Day Unconditional Guarantee

If for any reason you're not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.

Learn more

Tire Care 101

Tire Care 101

We'll teach you how to fix a flat, set your wheels up tubeless, and more.

Learn how

Your guide to MTB tires

Your guide to MTB tires

We'll help you find the right rubber for the trails you love to ride.

Find your tire

Try our tire finder

Try our tire finder

The right tire can make every ride better! Find the best tire for however and wherever you ride.

Find your tire

Specs
Sizing Service Reviews
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