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Grip that won't quit
Galbraith is our go-to trail tire 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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Shop all gearHow to change a flat tire
Flats happen, learn how to change your tube quickly so you can get back rolling.
Learn moreHow to pump up your tires
Setting your bike’s tire 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 $1 for every MTB tire sold, totaling over $1 million in support to the National Interscholastic Cycling Association, the governing body for middle- and high-school mountain biking in the US.
Read moreProduct features
Galbraith RSL SE
Named for Bellingham, Washington's iconic Galbraith Mountain, Bontrager Galbraith tires 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 60TPI 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 center rubber provides braking and climbing traction while soft shoulder rubber adds cornering confidence. An ultra-supportive base helps maintain a fast-rolling tire.
Go tubeless
A properly set up tubeless system lets you run lower tire 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 tires
We'll help you find the right rubber for the trails you love to ride.
Find your tireTry our tire finder
The right tire can make every ride better! Find the best tire for however and wherever you ride.
Find your tire| Size | 29" x 2.5" |
|---|---|
| Diameter | 29" |
| Width | 2.5" |
| TPI | 60 TPI |
| Compound | Trail Triple-Compound |
| Bead | Folding |
| Type | Tubeless Ready (TLR)/Clincher |
| Max pressure | 40psi |
| ETRTO | 63-622 |
| Tread | Knobby |
| Construction | RSL SE |
| Studdable | No |
| Sealant volume | 3.01oz (89mL) |
| Weight | 1330g |