We’ll make this a great experience

It’s our mission to provide you with world-class hospitality every time you visit us online or in-store. We’ll always take care of you. It’s the Trek way.

Awesome free shipping options

All accessory orders over $49 ship to your home for free, and all accessory orders ship free to your local retailer for in-store pickup.

30-day Unconditional Guarantee

If for any reason you’re not 100% happy with your online order from trekbikes.com, you can return it in like-new condition within 30 days. No questions asked.

Learn more

ARCHIVED

2019 - 2024

Bontrager GR1 Team Issue Gravel Tire

Model 571129

The GR1 Team Issue gravel tire is designed for fast rolling performance and consistent traction on the roads less paved. It has proven success at the most demanding gravel races, and features Inner Strength Casing for lightweight puncture protection while maintaining a smooth, supple, fast feel. Plus, you can go tubeless for better performance and even more puncture protection.

Product details

A gravel tire that excels in fast and firm conditions
Fast-rolling and predictable cornering with consistent traction
Tubeless Ready (TLR) for easy tubeless setup and puncture protection
Supple and strong Inner Strength casing provides lightweight sidewall protection
Lightweight 120 TPI casing provides great ride feel and tire performance

"The Bontrager GR-1 Team Issue tires blew away my expectations"

"The tight, small knobs of the GR1 create a fast-rolling tire with consistent grip on hardpack dirt and fine gravel."

"A brilliant all-round gravel tyre"

"And the supple casing provides burp free riding at low pressure that’s surprisingly resistant to cuts and gashes"

Get all your favorite apparel from over 80 of the world's best cycling brands delivered right to your doorstep or local Trek retailer when you shop our curated online collection. If you're not 100% satisfied, you can return your purchase within 30 days for a full refund.

Shop all gear

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

Learn more

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

Learn more

black-0 swatch

Bontrager Pro Flat Pack

$52.99

black-0 swatch

Bontrager TLR Sealant Injector

$14.99

black-0 swatch

Bontrager Standard Presta Valve Bicycle Tube

$10.49 - $14.99

A gravel tire that rolls fast while providing confident traction across all road surfaces. Perfect for the road less travelled.

Our Inner Strength Casing is made of lightweight nylon inserts that provide strong, supple sidewall protection for added tire durability.

A properly set up tubeless system lets you run lower tire pressure for better traction, added confidence, and a smoother, faster ride.

Learn more

Bontrager offers a complete tubeless system including wheels, tires, sealant, valves, and rim strips. Every part of this setup is designed to work smoothly together, for the best in performance and ease of use.

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.

Learn more

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

Find your tire

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

Learn how

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

Size	700C x 35mm	700C x 40mm
Diameter	700C	700C
Width	35mm	40mm
TPI	120 TPI	120 TPI
Durometer	60a/52a	60a/52a
Bead	Folding	Folding
Type	Tubeless Ready (TLR)/Clincher	Tubeless Ready (TLR)/Clincher
Max pressure	50psi	50psi
ETRTO	35-622	40-622
Tread	Knobby	Knobby
Construction	Inner Strength	Inner Strength
Studdable	No	No
Sealant volume	Not applicable	1.86oz (55mL)
Weight	390g	430g

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Weights are based off pre-production products at time of publication. Weights may vary in final production.

We’ll make this a great experience

Awesome free shipping options

30-day Unconditional Guarantee

Bontrager GR1 Team Issue Gravel Tire