30 Day Unconditional Guarantee
For Trek, Bontrager and Electra products, if for some reason you're not 100% happy with your purchase, you can return it within 30 days for a refund - no questions asked!
How to change a flat tyre
Flats happen, learn how to change your tube quickly so you can get back rolling.
Learn moreProduct features
GR1 Tires
A gravel tyre that rolls fast while providing confident traction across all road surfaces. Perfect for the road less travelled.
Inner Strength
Our Inner Strength Casing is made of lightweight nylon inserts that provide strong, supple sidewall protection for added tyre durability.
Go tubeless
A properly set up tubeless system lets you run lower tyre pressure for better traction, added confidence and a smoother, faster ride.
Better together
Bontrager offers a complete tubeless system including wheels, tyres, sealant, valves, and rim strips. Every part of this set-up is designed to work smoothly together, for the best in performance and ease of use.
How to set your tyres up tubeless
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 tyre finder
The right tyres can make every ride better! Find the best tyres for however and wherever you ride.
Find your tyre30-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| Size | 700C x 35mm | 700C x 40mm |
|---|---|---|
| Diameter | 700C | 700C |
| Width | 35mm | 40 mm |
| TPI | 120 TPI | 120 TPI |
| Durometer | 60a/52a | 60a/52a |
| Bead | Folding | Folding |
| Type | Tubeless Ready (TLR)/Clincher | Tubeless Ready (TLR)/Clincher |
| Maximum pressure | 50 psi | 50 psi |
| ETRTO | 35-622 | 40-622 |
| Tread | Knobby | Knobby |
| Construction | Inner Strength | Inner Strength |
| Studdable | No | No |
| Sealant volume | -- | 1.86oz (55mL) |
| Weight | 390g | 430g |