How to change a flat tire
Flats happen, learn how to change your tube quickly so you can get back rolling.
Learn moreFlats happen, learn how to change your tube quickly so you can get back rolling.
Learn moreSetting your bike’s tire pressure correctly will give you a more comfortable ride with better grip and handling. Learn how.
Learn moreTrek 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 moreA fast-rolling downhill mountain bike tire that excels in loose, rocky conditions and the biggest, roughest tracks.
Bontrager G-Series downhill mountain bike tires have been proven by the world's fastest riders on the world's most demanding downhill stages.
G4 Dual-Ply tires feature a multi-layer casing that increases tire stability, and an added butyl layer to prevent flats. Charge into the rowdiest lines with confidence.
G4 tires were designed with the expertise of Frank Stacy and the feedback of the most distinguished World Cup racers. Siped tread with larger center knobs and patterned shoulder knobs offer the ultimate in fast-rolling traction and braking control.
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 moreWe'll help you find the right rubber for the trails you love to ride.
Find your tireThe right tire can make every ride better! Find the best tire for however and wherever you ride.
Find your tireSize | 26" x 2.35" | 27.5" x 2.35" |
---|---|---|
Diameter | 26" | 27.5" |
Width | 2.35" | 2.35" |
TPI | 60 TPI | 60 TPI |
Durometer | 42a | 42a |
Bead | Wire | Wire |
Type | Clincher | Clincher |
Max pressure | 50psi | 50psi |
ETRTO | 60-559 | 60-584 |
Studdable | No | No |
Sealant volume | -- | Not applicable |
Weight | 1240g | 1295g |