Save Up to 30% Off Yeti »
Sale $69.99 $76.95 9% off

Item # WTB001I

Select options
  • Select options
  • Black, 27.5x2.25 ($69.99)
  • Black, 27.5x2.40 ($69.99)
  • 100% Guaranteed Returns
Item # WTB001I

The stickiest of the icky.

If you frequently find yourself riding on slick terrain, or just prefer a tire that prioritizes grip over fast rolling speed, you should check out the WTB Trail Boss TCS Tough HG 27.5in Tire. With a tread that's blocky enough to dig into loose ground but smooth enough to roll without excessive drag, it's built to be handle any terrain you ride, but it uses a sticker rubber compound than other Trail Boss tires, so handling tough corners and off-camber trails will be cake.

In contrast to the the Fast-Rolling (FR) versions of the Trail Boss, the HG (High Grip) model featured here covers a hard 60a rubber inner layer with a softer 45a sheath, which provides glue-like grip while maintaining the Trail Boss's ability to take a hit. The Tough version of the Trail Boss also doubles up on protection with a rugged Enduro casing, making it more durable than the Light version. Even on off-camber trails, the Trail Boss's staggered side knobs will keep you from sliding out, while the rounded center knobs will work the 45a rubber to keep you rolling confidently on slick and tricky terrain.

Tech Specs

Gravity DNA
27.5 x 2.25 in, 27.5 x 2.4 in
tube or tubeless
TCS aramid
Claimed Weight:
[2.25in] 900 g
Recommended Use:
cross country, trail, all mountain
Manufacturer Warranty:
2 years

Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Favorite hard terrain tire.

    When conditions are firm, or rocky you can't beat this tire. I used it all spring and summer from New Mexico to Montana, and it never faltered. The sidewall is incredibly tough, its fast rolling, grips great, and is durable enough to make me happy. It lacks grip in wet clay, and silty conditions, but not enough to change out till you're riding in those conditions for weeks on end.