STI R4 Tires

Massive Mud Weapon

A bigger, bolder and more extreme mud tire: the all-new STI R4 is specifically designed and engineered for high-performance UTV and ATV applications. The R4 features super-deep lugs angled to optimize traction performance both forward and in reverse.

Features:

• Deep lugs, 1.75 up to 2 inches
• 9 inches wide, and tubeless
• 8-ply rated radial
• Super deep rim guard
• Up to 35 inches tall for UTVs, and as small as 28 for ATVs

Some “tractor tire” designs are made… well, they are made for tractors. The STI R4 has U in mind – UTV and ATV, that is.

This new tire is constructed for durability, with a rubber compound built for abuse. The eight-ply rated, tubeless radial carcass tire measures nine-inches wide. The R4 features super-deep lugs – 1.75 inches at center and 2.0 inches at the shoulders – angled to optimize traction performance both forward and in reverse. The R4’s deep rim guard protects your wheels, as well.

NOTE: the 33- and 35-inch R4 tires go on 20-inch wheels, like the STI HD10.

Suggested retail prices range from $198 to $256.