Massive Mud WeaponA bigger, bolder and more extreme mud tire, the STI R4 is specifically designed and engineered for high-performance UTV and ATV applications. The 8-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 shoulder - angled to optimize traction performance both forward and in reverse.
This mud tire is constructed for durability too, with a rubber compound built for abuse. The R4's deep rim guard protects your wheels as well. Other tires may look the same, but only the STI R4 enters the mud with lugs this deep and a carcass this strong - and at a comparatively low weight.
- Large and Strong Rim Guard.
- Super Deep Angled Lugs.
- 8-ply rated Radial Carcass.
- 9 inches Wide.
Sizes & Specs:
|SIZE||PLY RATING||OVERALL DIAMETER (Inches)||TREAD DEPTH (Inches)||MAX PSI||MAX LOAD CAPACITY @ 18 PSI||TIRE WEIGHT (Pounds)||PART #|
|28 / 9R-14||8||28.2||1.75||18.0||1002 lbs.||36.3||209-1825|
|30 / 9R-14||8||30.2||1.75||18.0||1134 lbs.||38.5||209-1827|
|33 / 9R-20||8||33.2||1.75||18.0||1092 lbs.||40.7||209-1850|
|35 / 9R-20||8||35.2||1.75||18.0||1236 lbs.||47.3||209-1855|
|See vehicle label or owners manual for operating pressure|