WTB Trail Boss 27.5 Comp Tire - 27.5 x 2.25

Color: Black
Size: 27.5 IN x 2.25 IN
$30 oversize shipping applies.

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Members get an estimated $4.40 (10%) back on this item.
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Go out and dominate the trails on the WTB Trail Boss 27.5 Comp Tire, a performance-oriented tire dedicated to cross-country and all-mountain rides.


  • Relatively tight tread spacing provides an excellent plane for riding harder surfaces, creating a smooth-rolling sensation
  • Siping on center blocks and corner blocks create more working edges, enhancing braking and cornering for better traction
  • Cornering side blocks are offset from each other to create consistency and a predictable feel when transitioning from outer tread to inner tread
  • Durable casing provides the strength needed for wire bead tires to last; high ratio of rubber to thread protects against trail threats and urban unpleasantries
  • DNA rubber compound offers the ideal mix of rolling efficiency and traction for cross-country and trail riding
  • Note: Tire images shown may not reflect size/color/material options available on this page


View all WTB Mountain Bike Tires

Technical Specs

Best Use

Mountain Biking

Wheel Size

27.5 inches

Tire Width

2.25 inches

Bead Type


Thread Count Casing (tpi)

27 threads per inch

Tread Type

Knobby Tread

Recommended Pressure (psi)

35 - 65 pounds per square inch


913 grams

11 reviews with an average rating of 4.5 out of 5 stars

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