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!
Grip that won't quit
Galbraith is our go-to trail tyre for loose and soft conditions. It's tall-and-deep tread pattern paired with a super-tacky triple compound rubber provides unmatched traction on steep technical trails.
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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 gearHow to change a flat tyre
Flats happen, learn how to change your tube quickly so you can get back rolling.
Learn moreHow to pump up your tyres
Setting your bike’s tyre pressure correctly will give you a more comfortable ride with better grip and handling. Learn how.
Learn moreNICA 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
Galbraith RSL SE
Named for Bellingham, Washington's iconic Galbraith Mountain, Bontrager Galbraith tyres pack in serious traction and protection for staying planted on rock walls, balanced on wooden features and ripping through challenging, variable terrain.
Aggressive trail tread pattern
Galbraith's aggressive tread pattern keeps your grip locked in and packed with protection for loose, soft and techy conditions.
RSL SE construction
A robust 60 TPI casing features squarewoven nylon puncture protection from bead-to-bead, additional sidewall inserts, as well as butyl apex inserts for superior flat resistance from cuts, slashes and pinch flats.
Trail triple-compound
A medium-firm centre rubber provides braking and climbing traction while soft shoulder rubber adds cornering confidence. An ultra-supportive base helps maintain a fast-rolling tyre.
Go tubeless
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 tyreTry our tyre finder
The right tyres can make every ride better! Find the best tyres for however and wherever you ride.
Find your tyre| Size | 29" x 2.5" |
|---|---|
| Diameter | 29" |
| Width | 2.5" |
| TPI | 60 TPI |
| Compound | Trail Triple-Compound |
| Bead | Folding |
| Type | Tubeless Ready (TLR)/Clincher |
| Maximum pressure | 40 psi |
| ETRTO | 63-622 |
| Tread | Knobby |
| Construction | RSL SE |
| Studdable | No |
| Sealant volume | 89 ml |
| Weight | 1330g |