Trail Boss 2.25

$41.95

Select Product

View Specs

Product Description

Trail Boss calls the shots out on the trail. A true all-around-er, this tire feels at home on your local singletrack. Its consistent, blocky tread minimizes rolling resistance until you hit the brakes and allow the knobs to do their job. Pair it with a Vigilante 2.3 on the front for an excellent trail combo. Looking for this tried-and-true tread pattern in a wider width and updated design? Check out the Trail Boss 2.4/2.6.

Usage: Cross-Country • Trail • Enduro

Conditions: Loose Over Hard • Dirt • Loose • Rocky

Features

Technology

View the Specs

Reviews

No-Compromise Tread

Some tires are semi-slick and fast while others are chunky and bite. Trail Boss is designed to be the middleground trail tire. Tight groupings of center knobs cut down on rolling resistance without hesitating to dig in while braking. Tall outer knobs quickly provide traction in the earliest phases of cornering.

Strategically Directional Siping

Center and intermediate knobs are siped in a direction that improves accelerating and braking traction by increasing the amount of working edges that bite into the trail when you crank on the pedals or slam on the brakes. Outer knobs feature sipes that run parallel to the tire in order to improve cornering traction.

Rear-Focused Design

Trail Boss 2.25 features toothy knobs that maximize braking traction while their relatively tight spacing improves improve the longevity of the rear tire by increasing the total surface area counteracting heavy braking forces. Substantial side knobs overhang the sidewall of the tire to protect it from slashes while you're steering with the rear. We suggest pairing the Trail Boss 2.25 with a Vigilante 2.3 on the front.

TCS Tubeless-Ready

Most Trail Boss 2.25 tires feature a TCS tubeless-ready casing. TCS (Tubeless Compatible System) is WTB's standardized tubeless system. Versions with a TCS tubeless-ready casing benefit from reduced flats and allows lower tire pressures to improve traction and comfort over a traditional tube-type tire.

product technology

TCS (Tubeless Compatible System) is our industry-leading tubeless rim/tire system designed to international ETRTO and ISO standards.

One layer of supple, gram-conscious casing conforms to the terrain to provide maximum performance, exceptional reliability and low rotational weight.

Specifically formulated to prioritize rolling efficiency while also providing dependable traction and lasting durability.

Three compounds provide optimal levels of traction, support and durability. Different durometers of base rubber, center knobs and soft knobs allow us to fine-tune performance and increase rider confidence.

Available with SG2, which defends all surfaces of a tire by providing an uninterrupted layer of nylon puncture protection spanning from one bead to the other.

Product	Size	Level	ETRTO	GMS	Tubeless Compatibility	Casing	Weight	Compound	Min-Max Pressure*	Part Number
Trail Boss 2.25 x 29" TCS Light/Fast Rolling 60tpi TriTec SG2 tire	29 x 2.25"	TCS Light/Fast Rolling + SG2	54-622	54/57	TCS Tubeless	Single-ply 60 tpi	909g	TriTec	20-35 psi	W010-0887
Trail Boss 2.25 x 29" TCS Light/Fast Rolling 60tpi Dual DNA SG2 tire (tan)	29 x 2.25"	TCS Light/Fast Rolling + SG2 (tan)	54-622	54/57	TCS Tubeless	Single-ply 60 tpi	883g	Dual DNA	20-35 psi	W010-0886
Trail Boss 2.25 x 26" Comp 30tpi DNA tire	26 x 2.25"	Comp Tube-Type	54-559	54/57	Inner tube required	Single-ply 60 tpi	865g	DNA	30-45 psi	W010-0595
Trail Boss 2.25 x 27.5" Comp 30tpi DNA tire	27.5 x 2.25"	Comp Tube-Type	54-584	54/57	Inner tube required	Single-ply 60 tpi	891g	DNA	30-45 psi	W010-0551
Trail Boss 2.25 x 29" Comp 30tpi DNA tire	29 x 2.25"	Comp Tube-Type	54-622	54/57	Inner tube required	Single-ply 60 tpi	914g	DNA	30-45 psi	W010-0522

*WTB's tire pressure recommendations have changed over time due to further developments in technology. Riders may always reference the markings on their tires for allowed pressures ranges, but may also consult wtb.com for the most up-to-date tire pressure recommendations from WTB. We calculate pressure recommendations based on an average rider weight of 160-180 lbs and suggest increasing our minimum recommended pressure on WTB.com by 2-3psi for every additional 10 lbs of rider weight. Never exceed the maximum tire pressure marked on a tire.

Dual DNA Compound

Dual DNA is the perfect mix of efficiency, traction, and durability. The centerline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. In other words...speed where you want it and traction where you need it.

TCS Light or TCS Tough?

TCS Light tires feature a single-ply casing whereas TCS Tough tires are dual-ply. XC and trail riders often choose TCS Light tires for their minimal weights while enduro, gravity and e-bike riders prefer TCS Tough for the additional durability and cornering support. Some riders opt for TCS Light on the front where weight is more noticeable and TCS Tough on the rear where a burlier tire is beneficial. Most of our TCS Light mountain tires feature Slash Guard technology, which provides a protective nylon insert spanning the entire sidewall to provide extra puncture protection without the weight of a dual ply casing.

SG2 Puncture Protection

TCS Light single-ply mountain tires are available with SG2 puncture protection. SG2 is a lightweight nylon layer that protects all areas of the tire with an additional level of defense against punctures and pinch flats. Bead-to-bead SG2 also improves sidewall stability and overall tire support without the additional weight of a Tough (dual-ply) casing.

Flat nylon fibers within SG2 reduce the amount of rubber needed to fill the gaps between fibers compared to traditional protection layers with round fibers. The increased fiber-to-rubber ratio boosts puncture resistance while reducing weight and improving suppleness compared to our Tough casings. Third-party lab testing showed bead-to-bead SG2 provides 80% more sidewall protection than traditional single-ply tires without SG2.