1/8

Bontrager Gnarwhal Fat Bike Tire

Bontrager / Bike Tires

Bontrager Gnarwhal Fat Bike Tire

A stud-ready winter tire designed to bite into any trail surface.

$129.99

Ship to store · free pickup, usually ready in 4–7 business days

Free pickup at any of our four stores. Questions? We're happy to help.

About this product

The details.

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 rid

Product details

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

What makes it special

The little details. The big difference.

The details

Good to know-

Specs14

Size: 27.5" x 4.5"
Diameter: 27.5"
Width: 4.5"
TPI: 120 TPI
Durometer: 62a/60a
Bead: Folding
Type: Tubeless Ready (TLR)/Clincher
Max pressure: 20psi
ETRTO: 114-584
Tread: Knobby
Construction: Inner Strength
Studdable: Yes
Sealant volume: Not applicable
Weight: 1515.0g

Good to know5

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.
Your guide to MTB tires We'll help you find the right rubber for the trails you love to ride.
Tire Care 101 We'll teach you how to fix a flat, set your wheels up tubeless, and more.
Going tubeless adds performance, speed, and comfort to your ride and can even help seal punctures before they become flats. Bontrager makes tubeless setup simple, and we'll teach you everything you need to know to do it yourself.
Try our tire finder The right tire can make every ride better! Find the best tire for however and wherever you ride.

What reviewers are saying.

“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
bikeradar.com · Read the review
“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
singletracks.com · Read the review
“Celebrate!”
The Gnarwhals handled [those] conditions with ease and cat-like traction
fat-bike.com · Read the review
“Outrageous traction”
Testers were pleasantly surprised that there wasn't more rolling resistance while riding the Gnarwhal tires
outdoorgearlab.com · Read the review