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  • Tread is tightly spaced for high speed, drag-free onslaughts, yet blocky and tall enough to really dig in when it comes time to slam on the brakes
  • A rounded profile and staggered, supported side knobs keep clamoring for traction even as the trail becomes smooth
  • Relatively tight tread spacing provides an excellent plane for riding harder surfaces, creating a smooth-rolling sensation
  • Siping on center blocks as well as corner blocks create more working edges, and as tires undergo braking and cornering additional bands of grip are exposed to enhance traction
  • The cornering side blocks are offset from each other to create consistency and a predictable feel when transitioning from outer tread to inner tread
  • A robust casing provides the strength needed for wire bead tires to last, and a high ratio of rubber to thread protects against trail threats and urban unpleasantries
  • Proprietary 60a durometer rubber compound offers the ideal mix of rolling efficiency and traction for cross-country and trail riding; plus, it's versatile and long lasting


View all WTB Mountain Bike Tires

REI membership


Best Use Mountain Biking
Wheel Size 29 inches
Tire Width 2.25 inches
Thread Count Casing (tpi) 27 tpi
Tread Type Knobby Tread
Recommended Pressure (psi) 35 - 65 pounds per square inch
Weight 900 grams
Rated 4 out of 5 by from WTB Trail Boss MTB tire. Bought this tire on the way to Moab. It gripped at Slickrock like a champ! It wanted to keep gripping and climbing when I couldn't! I will however put this tire on the front and get one a bit wider for the rear. I didn't realize I had purchased a 2.25 for the rear. Great tire!
Date published: 2017-04-08
Rated 4 out of 5 by from Great tire had good luck with this tire, it took a beating even with some sidewall damage. it is a "heavy" tire for those who are weight conscious.
Date published: 2016-10-18
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Is this tire tubeless compatible? 

Asked by: Tom ME11
The Trail Boss 29er Comp Tire is not tubeless compatible.
Answered by: REIservice
Date published: 2015-09-20
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