
Roctane XR - Trail Tamers
STI revolutionizes the Roctane with the XR family of tires, led by a 35-inch trail-tamer tire made for 18-inch wheels (like the all-new STI HD9 18-inch). The XR line also includes four more sizes, from 28- to 33-inch tires. With their 9.5-inch wide sizing and new 8-ply rated radial carcass, the Roctane XRs deliver lightweight, all-terrain performance at a great price.With the changes they engineered, STI was able to deliver tires that are 20- to 30-percent lighter than similar-sized Roctane XD tires, and are available at retail prices up to 30-percent lower. And performance was not sacrificed.
Starting with the original Roctane XD, STI re-imagined a lighter, all-terrain, trail-oriented tire to make the new Roctane XR. With superior traction and precise handling, the Roctane XR tires set a higher standard for all-terrain traction, with handling that's on the money - for less money.

- 9.5 inch profile.
- 8-ply rated radial, durable, traction monster.
- Designed for premium handling and light weight.
- Multi-angle tread blocks with dimples and ample biting edges.
Sizes & Specs
Roctane XR | |||||||
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SIZE | PLY RATING | OVERALL DIAMETER (Inches) | TREAD DEPTH (Inches) | MAX PSI | MAX LOAD CAPACITY @ 18 PSI | TIRE WEIGHT (Pounds) | PART # |
28 / 9.5R-14 | 8 | 28.0 | 0.8 | 18.0 | 954 lbs. | 30.6 | 209-1925 |
30 / 9.5R-14 | 8 | 30.0 | 0.8 | 18.0 | 1089 lbs. | 34.5 | 209-1927 |
32 / 9.5R-14 | 8 | 32.0 | 0.8 | 18.0 | 1176 lbs. | 37.4 | 209-1929 |
33 / 9.5R-15 | 8 | 33.0 | 0.8 | 18.0 | 1230 lbs. | 39.2 | 209-1948 |
35 / 9.5R-18 | 8 | 35.0 | 0.8 | 18.0 | 1371 lbs. | 42.9 | 209-1949 |
See vehicle label or owners manual for operating pressure |
