Specialized

Hillbilly Grid Gravity T9 TLR Tire

What Our Gearhead® Experts Are Saying:

"The two-ply casing on the Hillbilly Grid Gravity T9 TLR Tire is built for the kind of riding that eats lighter tires for breakfast. I ran it on a loamy, tech-heavy enduro course in wet conditions, and the compound damped out the chatter on the root sections noticeably — less deflection, more control. The shoulder knobs are deep enough to actually find traction in greasy loam rather than skating across it."

Gravity riding in the continental north — loose over hard, rooty chutes, greasy rock slabs, and steep loam corners that shift underfoot — demands a tire engineered specifically for those conditions rather than adapted from a cross-country or trail-oriented design. The Specialized Hillbilly Grid Gravity T9 TLR Tire starts from that premise. The spiked center knobs are designed to punch through loose surface material and find traction rather than ride on top of it, and the block-in-block transition knobs between the center and shoulder reinforce the tread structure, support the shoulder knobs under load, and reduce rolling resistance between corners without sacrificing lateral stability.

The shoulder blocks are built high-volume for a reason: loaded cornering on steep terrain compresses the tire hard into the ground, and blocks that aren't tall enough to engage soil depth under that force don't hold the line. The compound is formulated to damp rather than spring — reducing the bounce and deflection that causes a tire to skip off roots and rocks rather than grip them. That characteristic is especially relevant on high-speed tech sections where chatter builds quickly, and control depends on the tire staying in consistent contact with the ground. The two-ply casing handles square-edge impacts and the structural stress of hard cornering without the sidewall flex that compromises feedback and confidence, and a tubeless setup allows pressure to drop low enough that the tire can deform naturally into irregular terrain.

Available in 27.5 x 2.4 and 29 x 2.4, the Hillbilly Grid Gravity T9 TLR Tire is suited to enduro, park, and lift-accessed riding where the priority is grip, durability, and control over aggressive terrain. Riders running it up front on an aggressive trail setup will find it most rewarding in wet or loose-over-hard conditions; rear use is well-suited to riders who prioritize rear-end traction and stability over low rolling resistance. Those needing a lighter front-rear pairing for mixed conditions may want to consider the Grid Trail casing version for rear duty.