Do Your Mud Tires Measure Up?

New 26-inch and 27-inch sizes for 12-inch wheels! The STI Out & Back Max tires feature an aggressive tread pattern and true sizing designed to power today’s everything through the mud, from large-bore UTVs to mid-size ATVs, and then get them back in comfort. In sizes from 26 inch up to 36 inch, the Out & Back Max tires use stepped-lug construction and a rugged carcass for trusted performance in the sloppiest conditions.

Do your mud tires measure up to the Max?

More Info



  1. 1.5-inch tread depth in the center, and 2.0-inch depth at the shoulder.
  2. Stepped-lug construction builds lugs for minimum flex and maximum traction.
  3. Sturdy 8-ply carcass for low-psi operation and supreme flotation.
  4. True sizing means the competition doesn’t measure up to Out & Back Max.


Sizes & Specs:

Out & Back Max
SIZEPLY RATINGOVERALL DIAMETER (Inches)TREAD DEPTH (Inches)MAX PSIMAX LOAD CAPACITY @ Max PSITIRE WEIGHT (Pounds)PART #
26 / 10-12626.21.57440lbs.37.6001-1313
27 / 10-12627.21.57470 lbs.40.6001-1315
27 / 10-14827.12.018942 lbs.39.6001-1323
28 / 10-14828.32.0181002 lbs.44.0001-1325
30 / 10-14830.02.0181134 lbs.48.2001-1327
32 / 10-14832.12.0181260 lbs.53.8001-1329
31 / 10-15831.02.0181185 lbs.51.4001-1345
32 / 10-17832.02.0181209 lbs.53.2001-1361
34 / 10-17834.02.0181293 lbs.58.5001-1371
36 / 10-18836.02.5181518 lbs.68.0001-1381
See vehicle label or owners manual for operating pressure
NEW SIZE!

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