SL309
The SL309 uses an all-season tread with wide circumferential grooves for water drainage. A double-ply casing, steel belts and jointless nylon cap layers support highway stability and durability under load.
Published sizes (ZC Rubber manufacturer product table): 31×10.50R15LT, LT215/75R15, LT235/75R15, 185/75R16C, LT225/75R16, LT245/75R16, LT265/75R16, LT285/75R16, LT215/85R16, LT235/85R16, LT245/70R17, LT265/70R17, LT285/70R17, LT245/75R17, LT235/80R17, LT275/65R18.
SL366
The SL366 is an off-road design aimed at difficult unsealed surfaces, including mud and sand. Its varied shoulder blocks are designed to support traction and handling on rough ground.
Published sizes (ZC Rubber manufacturer product table): 185R14C, 195R14C, 205/70R15C, 30×9.50R15LT, 31×10.50R15LT, 32×11.50R15LT, 33×12.50R15LT, 35×12.50R15LT, LT215/75R15, LT225/75R15, LT235/75R15, 205R16C, LT225/75R16, LT245/75R16, LT265/75R16, LT285/75R16, LT315/75R16, LT235/85R16, 35×12.50R17LT, 37×12.50R17LT, LT265/65R17, LT245/70R17, LT265/70R17, LT285/70R17, LT315/70R17, 35×12.50R18LT, 33×12.50R20LT, 35×12.50R20LT.