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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 US $1 for every MTB tyre sold, totalling over $1 million in support to the US National Interscholastic Cycling Association, the governing body for junior- and secondary-school mountain biking in the US.
Read moreProduct features
Race-Ready
Light-weight for quick accelerations and efficient climbing, the XR1 features a tread and compound that rolls faster, making it the go-to racing tyre for Trek Factory racers on the fastest World Cup courses.
Inner Strength
Our Inner Strength Casing is made of a lightweight nylon insert that provide strong, supple sidewall protection for added tyre durability without a weight penalty.
Fast-Rolling Tread
XR1 Features a smooth centre tread that accelerates quickly and maintains speed easily. The more aggressive side knobs add grip and confidence for cornering and through more technical sections.
TM-Speed compound
Our proprietary TM-Speed compound is designed to roll faster without sacrificing traction. 120 TPI construction keeps it lightweight and fast, with a great tyre feel.
Tubeless-ready
A properly set up tubeless system lets you run lower tyre pressure for better traction, added confidence and a smoother, faster ride.
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 moreYour guide to MTB tyres
We'll help you find the right rubber for the trails you love to ride.
Find your tyreOur tyres build strong kids
$1 from the sale of every Bontrager mountain bike tyre supports the US National Interscholastic Cycling Association. NICA is one of the fastest-growing secondary school sports in North America and Trek is proud to support their efforts to provide opportunities for all American youth to build strong body, mind and character through mountain biking
| Size | 29" x 2.2" |
|---|---|
| Diameter | 29" |
| Width | 2.2" |
| TPI | 120 TPI |
| Durometer | 62a/60a |
| Bead | Folding |
| Type | Tubeless Ready (TLR)/Clincher |
| Maximum pressure | 50 psi |
| ETRTO | 56-622 |
| Tread | Knobby |
| Construction | Inner Strength |
| Studdable | No |
| Sealant volume | 85 ml |
| Weight | 630g |