Not offering a good value warranty can shy someone away from their product; you can’t put a price on peace of mind. Don’t worry, I researched for you, and here is what they have to offer with their tires.
Nitto offers a zero-miles treadwear warranty, which is terrible, especially when you look at its sister tire, the Toyo Open Country R/T. For example, the Open Country R/T has a forty-five-thousand-mile treadwear warranty.
Regarding ride satisfaction, they will provide no ride trial period, so hopefully, the tire retailer you purchase them from does. If they don’t and you are unsatisfied with them, you are SOL and will be stuck with these tires.
The only type of coverage you get with the Ridge Grappler is from manufacturing defects which they will only replace for free within the first 1/32nd of the tread.
Nitto offers one of the worst warranties I have seen with this product.
16″
265/70R16 116T XL BSW
265/75R16 116T SL BSW
LT 265/75R16 123/120Q E BSW
LT 285/75R16 126/123Q E BSW
LT 295/75R16 128/125Q E BSW
LT 305/70R16 124/121Q E BSW
LT 315/75R16 127/124Q E BSW
17″
LT 255/80R17 121/118Q E BSW
265/65R17 116T XL BSW
265/70R17 115T SL BSW
LT 265/70R17 121/118Q E BSW
LT 265/70R17 112/109S C BSW
285/70R17 116Q SL BSW
LT 285/70R17 121/118Q E BSW
LT 285/70R17 116/113Q C BSW
LT 285/75R17 121/118Q E BSW
LT 285/75R17 117/114Q C BSW
LT 295/70R17 121/118Q E BSW
LT 305/70R17 121/118Q E BSW
LT 315/70R17 121/118Q E BSW
LT 33X12.50R17 120Q E BSW
LT 35X12.50R17 121Q E BSW
LT 37X12.50R17 124Q D BSW
LT 37X13.50R17 121Q E BSW
18″
255/55R18 109T XL BSW
255/70R18 116T XL BSW
265/60R18 114S XL BSW
265/65R18 116T XL BSW
LT 265/65R18 122/119Q E BSW
265/70R18 116S SL BSW
LT 265/70R18 124/121Q E BSW
275/65R18 116T XL BSW
LT 275/65R18 123/120Q E BSW
LT 275/70R18 125/122Q E BSW
285/60R18 120T XL BSW
LT 285/60R18 122/119Q E BSW
LT 285/65R18 125/122Q E BSW
LT 285/70R18 127/124Q E BSW
LT 285/75R18 129/126Q E BSW
LT 295/70R18 129/126Q E BSW
305/60R18 116Q SL BSW
LT 305/65R18 128/125Q F BSW
LT 325/60R18 124/121Q E BSW
LT 325/65R18 127/124Q E BSW
LT 33X12.50R18 122Q F BSW
LT 35X12.50R18 128Q F BSW
LT 37X11.50R18 127Q D BSW
LT 37X12.50R18 128Q E BSW
LT 37X13.50R18 124Q D BSW
20″
265/50R20 111T XL BSW
LT 265/60R20 121/118Q E BSW
275/55R20 117T XL BSW
LT 275/55R20 120/117Q E BSW
275/60R20 116T XL BSW
LT 275/60R20 123/120Q E BSW
LT 275/65R20 126/123Q E BSW
285/50R20 116Q XL BSW
LT 285/55R20 122/119Q E BSW
LT 285/60R20 125/122Q E BSW
LT 285/65R20 127/124Q E BSW
LT 295/55R20 123/120Q E BSW
LT 295/60R20 126/123Q E BSW
LT 295/65R20 129/126Q E BSW
305/50R20 120Q XL BSW
305/55R20 116Q XL BSW
LT 305/55R20 125/122Q F BSW
LT 325/60R20 126/123Q E BSW
LT 33X11.50R20 118Q E BSW
LT 33X12.50R20 119Q F BSW
LT 35X11.50R20 124Q E BSW
LT 35X12.50R20 125Q F BSW
LT 35X13.50R20 126Q F BSW
LT 37X11.50R20 128Q E BSW
LT 37X12.50R20 126Q E BSW
LT 37X13.50R20 127Q E BSW
LT 38X13.50R20 128Q E BSW
22″
285/45R22 114Q XL BSW
LT 285/50R22 121/118Q E BSW
LT 285/55R22 124/121Q E BSW
LT 295/50R22 122/119Q E BSW
LT 295/55R22 125/122Q E BSW
305/45R22 118T XL BSW
LT 325/50R22 127Q F BSW
LT 33X12.50R22 114Q F BSW
LT 35X12.50R22 121Q F BSW
LT 37X12.50R22 127Q F BSW
LT 37X13.50R22 128Q F BSW
LT 38X13.50R22 126Q E BSW
24″
LT 315/45R24 123Q F BSW
LT 315/50R24 127/124Q F BSW
LT 37X13.50R24 124Q F BSW
LT 38X13.50R24 127Q F BSW