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Jeep grand wagoneer tire upsize & plus-size guide

Every safe upsize, plus-size, wider, and winter-narrower option for the Jeep Grand Wagoneer; covering all 6 of its factory tire sizes, each inside the ETRTO ±3% overall-diameter tolerance, with speedometer impact and catalog availability per size.

By Mark Bishop · Last verified 2026-05-17 · Jeep Grand Wagoneer fitment specs

This guide takes the factory tire sizes of the Jeep Grand Wagoneer and shows every geometrically valid alternative; the plus-sizes that fill the wheel arch, the wider sizes that add grip, and the narrower winter sizes that bite through snow. All math is derived from the ±3% ETRTO safe-fit rule, not scraped listings.

285/45R22; factory fitment (2022–2026)

Overall diameter 815.3 mm (32.10 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
295/35R24 816 0.10% 60.06 mph Safe -
255/40R24 814 -0.21% 59.87 mph Safe -
285/35R24 809 -0.76% 59.54 mph Safe -
265/40R24 822 0.77% 60.46 mph Safe -
305/35R24 823 0.96% 60.57 mph Safe -
275/35R24 802 -1.62% 59.03 mph Within tolerance -
275/40R24 830 1.75% 61.05 mph Within tolerance -
315/35R24 830 1.82% 61.09 mph Within tolerance -
315/30R24 799 -2.05% 58.77 mph Within tolerance -
265/35R24 795 -2.48% 58.51 mph Within tolerance -
285/40R24 838 2.74% 61.64 mph Within tolerance -
305/30R24 793 -2.78% 58.33 mph Within tolerance -
255/45R24 839 2.92% 61.75 mph Within tolerance -

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
315/40R22 811 -0.55% 59.67 mph Safe -
295/45R22 824 1.10% 60.66 mph Within tolerance -
305/40R22 803 -1.53% 59.08 mph Within tolerance -
305/45R22 833 2.21% 61.32 mph Within tolerance -
295/40R22 795 -2.51% 58.49 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/55R21 814 -0.17% 59.90 mph Safe -
255/50R22 814 -0.18% 59.89 mph Safe -
275/50R21 808 -0.85% 59.49 mph Safe -
265/50R22 824 1.04% 60.63 mph Within tolerance -
275/45R22 806 -1.10% 59.34 mph Within tolerance -
265/55R21 825 1.18% 60.71 mph Within tolerance -
265/50R21 798 -2.07% 58.76 mph Within tolerance -
265/45R22 797 -2.21% 58.68 mph Within tolerance -
275/50R22 834 2.27% 61.36 mph Within tolerance -
275/55R21 836 2.53% 61.52 mph Within tolerance -
255/55R22 839 2.94% 61.77 mph Within tolerance -
255/60R21 839 2.96% 61.77 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/60R20 814 -0.16% 59.90 mph Safe -
315/45R21 817 0.20% 60.12 mph Safe -
305/50R20 813 -0.28% 59.83 mph Safe -
285/50R21 818 0.38% 60.23 mph Safe -
275/55R20 811 -0.59% 59.65 mph Safe Yes
285/55R20 822 0.76% 60.46 mph Safe -
305/45R21 808 -0.91% 59.46 mph Safe -
315/50R20 823 0.94% 60.57 mph Safe -
265/60R20 826 1.31% 60.79 mph Within tolerance -
295/50R20 803 -1.51% 59.09 mph Within tolerance -
295/50R21 828 1.61% 60.96 mph Within tolerance -
265/55R20 800 -1.94% 58.84 mph Within tolerance -
295/45R21 799 -2.01% 58.79 mph Within tolerance -
295/55R20 833 2.11% 61.27 mph Within tolerance -
285/50R20 793 -2.74% 58.36 mph Within tolerance -
275/60R20 838 2.78% 61.67 mph Within tolerance Yes
305/50R21 838 2.83% 61.70 mph Within tolerance -
315/45R20 792 -2.92% 58.25 mph Within tolerance -
255/65R20 840 2.97% 61.78 mph Within tolerance -

275/55R20; factory fitment (2021–2026)

Overall diameter 810.5 mm (31.91 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-1 (next rim size up)

Plus-1 keeps overall diameter constant while bumping rim diameter by one inch and dropping aspect ratio by ten points. The standard daily-driver upgrade; sharper steering response, mild ride penalty, modest tire-cost premium.

SizeOD (mm)True @ 60 mphVerdictIn catalog
275/50R21 808 -0.26% 59.84 mph Safe -
305/45R21 808 -0.32% 59.81 mph Safe -
255/55R21 814 0.42% 60.25 mph Safe -
245/55R21 803 -0.94% 59.44 mph Safe -
285/50R21 818 0.97% 60.58 mph Safe -
295/45R21 799 -1.43% 59.14 mph Within tolerance -
265/50R21 798 -1.49% 59.10 mph Within tolerance -
265/55R21 825 1.78% 61.07 mph Within tolerance -
245/60R21 827 2.09% 61.25 mph Within tolerance -
295/50R21 828 2.21% 61.33 mph Within tolerance -
285/45R21 790 -2.54% 58.48 mph Within tolerance -
255/50R21 788 -2.73% 58.36 mph Within tolerance -

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/50R22 814 0.41% 60.24 mph Safe -
275/45R22 806 -0.52% 59.69 mph Safe -
285/45R22 815 0.59% 60.36 mph Safe Yes
245/50R22 804 -0.83% 59.50 mph Safe -
305/40R22 803 -0.95% 59.43 mph Safe -
265/45R22 797 -1.63% 59.02 mph Within tolerance -
265/50R22 824 1.64% 60.98 mph Within tolerance -
295/45R22 824 1.70% 61.02 mph Within tolerance -
295/40R22 795 -1.94% 58.84 mph Within tolerance -
245/55R22 828 2.20% 61.32 mph Within tolerance -
255/45R22 788 -2.74% 58.36 mph Within tolerance -
305/45R22 833 2.81% 61.69 mph Within tolerance -
275/50R22 834 2.87% 61.72 mph Within tolerance -
285/40R22 787 -2.92% 58.25 mph Within tolerance -

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
305/50R20 813 0.31% 60.19 mph Safe -
295/50R20 803 -0.93% 59.44 mph Safe -
285/55R20 822 1.36% 60.81 mph Within tolerance -
285/50R20 793 -2.16% 58.70 mph Within tolerance -
295/55R20 833 2.71% 61.63 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/60R20 814 0.43% 60.26 mph Safe -
255/65R19 814 0.44% 60.27 mph Safe -
245/60R20 802 -1.05% 59.37 mph Within tolerance -
245/65R19 801 -1.16% 59.30 mph Within tolerance -
265/60R19 801 -1.22% 59.27 mph Within tolerance -
265/55R20 800 -1.36% 59.19 mph Within tolerance -
245/70R19 826 1.86% 61.12 mph Within tolerance -
265/60R20 826 1.91% 61.15 mph Within tolerance -
245/65R20 827 1.97% 61.18 mph Within tolerance -
265/65R19 827 2.05% 61.23 mph Within tolerance -
255/60R19 789 -2.70% 58.38 mph Within tolerance -
255/55R20 789 -2.71% 58.37 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
295/60R18 811 0.09% 60.05 mph Safe -
275/60R19 813 0.26% 60.16 mph Safe -
295/55R19 807 -0.42% 59.75 mph Safe -
255/70R18 814 0.46% 60.27 mph Safe -
275/65R18 815 0.52% 60.31 mph Safe Yes
305/55R19 818 0.94% 60.56 mph Safe -
265/65R18 802 -1.09% 59.35 mph Within tolerance -
245/70R18 800 -1.27% 59.24 mph Within tolerance -
285/60R18 799 -1.39% 59.16 mph Within tolerance -
305/60R18 823 1.57% 60.94 mph Within tolerance -
285/60R19 825 1.74% 61.04 mph Within tolerance -
245/75R18 825 1.75% 61.05 mph Within tolerance -
285/55R19 796 -1.78% 58.93 mph Within tolerance -
285/65R18 828 2.12% 61.27 mph Within tolerance -
265/70R18 828 2.18% 61.31 mph Within tolerance Yes
305/55R18 793 -2.20% 58.68 mph Within tolerance -
255/65R18 789 -2.69% 58.39 mph Within tolerance -
305/50R19 788 -2.83% 58.30 mph Within tolerance -
275/60R18 787 -2.87% 58.28 mph Within tolerance -

275/65R18; factory fitment (2022–2026)

Overall diameter 814.7 mm (32.07 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-1 (next rim size up)

Plus-1 keeps overall diameter constant while bumping rim diameter by one inch and dropping aspect ratio by ten points. The standard daily-driver upgrade; sharper steering response, mild ride penalty, modest tire-cost premium.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/65R19 814 -0.07% 59.96 mph Safe -
275/60R19 813 -0.26% 59.85 mph Safe -
305/55R19 818 0.42% 60.25 mph Safe -
295/55R19 807 -0.93% 59.44 mph Safe -
285/60R19 825 1.22% 60.73 mph Within tolerance -
245/70R19 826 1.34% 60.80 mph Within tolerance -
265/65R19 827 1.52% 60.91 mph Within tolerance -
245/65R19 801 -1.67% 59.00 mph Within tolerance -
265/60R19 801 -1.73% 58.96 mph Within tolerance -
285/55R19 796 -2.28% 58.63 mph Within tolerance -
295/60R19 837 2.69% 61.61 mph Within tolerance -

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/60R20 814 -0.09% 59.95 mph Safe -
305/50R20 813 -0.21% 59.87 mph Safe -
275/55R20 811 -0.52% 59.69 mph Safe Yes
285/55R20 822 0.83% 60.50 mph Safe -
265/60R20 826 1.39% 60.83 mph Within tolerance -
295/50R20 803 -1.44% 59.14 mph Within tolerance -
245/65R20 827 1.45% 60.87 mph Within tolerance -
245/60R20 802 -1.56% 59.06 mph Within tolerance -
265/55R20 800 -1.87% 58.88 mph Within tolerance -
295/55R20 833 2.18% 61.31 mph Within tolerance -
285/50R20 793 -2.66% 58.40 mph Within tolerance -
275/60R20 838 2.86% 61.72 mph Within tolerance Yes

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
295/60R18 811 -0.43% 59.74 mph Safe -
305/60R18 823 1.04% 60.63 mph Within tolerance -
285/65R18 828 1.60% 60.96 mph Within tolerance -
285/60R18 799 -1.90% 58.86 mph Within tolerance -
305/55R18 793 -2.70% 58.38 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/75R17 814 -0.05% 59.97 mph Safe -
255/70R18 814 -0.06% 59.96 mph Safe -
245/80R17 824 1.12% 60.67 mph Within tolerance -
245/75R18 825 1.23% 60.74 mph Within tolerance -
265/70R17 803 -1.46% 59.12 mph Within tolerance Yes
265/65R18 802 -1.60% 59.04 mph Within tolerance -
265/70R18 828 1.66% 60.99 mph Within tolerance Yes
245/70R18 800 -1.78% 58.93 mph Within tolerance -
265/75R17 829 1.79% 61.08 mph Within tolerance -
245/75R17 799 -1.89% 58.87 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/80R16 814 -0.04% 59.98 mph Safe -
295/65R17 815 0.07% 60.04 mph Safe -
275/70R17 817 0.26% 60.15 mph Safe -
275/75R16 819 0.52% 60.31 mph Safe -
295/70R16 819 0.58% 60.35 mph Safe -
245/85R16 823 1.01% 60.60 mph Within tolerance -
285/70R16 805 -1.14% 59.32 mph Within tolerance -
265/75R16 804 -1.33% 59.20 mph Within tolerance -
305/65R16 803 -1.45% 59.13 mph Within tolerance -
285/65R17 802 -1.52% 59.09 mph Within tolerance -
305/65R17 828 1.67% 61.00 mph Within tolerance -
265/80R16 830 1.93% 61.16 mph Within tolerance -
285/70R17 831 1.98% 61.19 mph Within tolerance Yes
245/80R16 798 -2.00% 58.80 mph Within tolerance -
305/60R17 798 -2.07% 58.76 mph Within tolerance -
305/70R16 833 2.30% 61.38 mph Within tolerance -
285/75R16 834 2.36% 61.41 mph Within tolerance -
275/70R16 791 -2.86% 58.28 mph Within tolerance -

235/75R15; factory fitment (1988–1991)

Overall diameter 733.5 mm (28.88 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-1 (next rim size up)

Plus-1 keeps overall diameter constant while bumping rim diameter by one inch and dropping aspect ratio by ten points. The standard daily-driver upgrade; sharper steering response, mild ride penalty, modest tire-cost premium.

SizeOD (mm)True @ 60 mphVerdictIn catalog
205/80R16 734 0.12% 60.07 mph Safe -
235/70R16 735 0.26% 60.16 mph Safe -
255/65R16 738 0.60% 60.36 mph Safe -
215/75R16 729 -0.63% 59.62 mph Safe -
245/65R16 725 -1.17% 59.30 mph Within tolerance -
265/60R16 724 -1.24% 59.26 mph Within tolerance -
225/75R16 744 1.42% 60.85 mph Within tolerance -
225/70R16 721 -1.65% 59.01 mph Within tolerance -
245/70R16 749 2.17% 61.30 mph Within tolerance -
215/80R16 750 2.30% 61.38 mph Within tolerance -
265/65R16 751 2.37% 61.42 mph Within tolerance -
205/75R16 714 -2.67% 58.40 mph Within tolerance -
255/60R16 712 -2.88% 58.27 mph Within tolerance -
205/85R16 755 2.92% 61.75 mph Within tolerance -
235/65R16 712 -2.94% 58.23 mph Within tolerance -

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
215/70R17 733 -0.10% 59.94 mph Safe -
235/65R17 737 0.52% 60.31 mph Safe Yes
255/60R17 738 0.59% 60.35 mph Safe -
205/75R17 739 0.79% 60.47 mph Safe -
245/60R17 726 -1.05% 59.37 mph Within tolerance -
225/65R17 724 -1.25% 59.25 mph Within tolerance Yes
265/55R17 723 -1.39% 59.17 mph Within tolerance -
225/70R17 747 1.81% 61.09 mph Within tolerance -
205/70R17 719 -2.00% 58.80 mph Within tolerance -
265/60R17 750 2.22% 61.33 mph Within tolerance -
245/65R17 750 2.29% 61.37 mph Within tolerance -
235/60R17 714 -2.69% 58.39 mph Within tolerance -
215/75R17 754 2.84% 61.70 mph Within tolerance -
255/55R17 712 -2.89% 58.27 mph Within tolerance -

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
255/70R15 738 0.61% 60.37 mph Safe -
265/65R15 726 -1.09% 59.35 mph Within tolerance -
245/70R15 724 -1.30% 59.22 mph Within tolerance -
245/75R15 749 2.04% 61.23 mph Within tolerance -
265/70R15 752 2.52% 61.51 mph Within tolerance -
255/65R15 713 -2.86% 58.28 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
205/85R15 730 -0.55% 59.67 mph Safe -
225/85R14 738 0.63% 60.38 mph Safe -
225/80R15 741 1.02% 60.61 mph Within tolerance -
215/80R15 725 -1.16% 59.30 mph Within tolerance -
215/85R14 721 -1.69% 58.99 mph Within tolerance -
215/85R15 747 1.77% 61.06 mph Within tolerance -
225/75R15 719 -2.04% 58.77 mph Within tolerance -
225/80R14 716 -2.44% 58.54 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
235/80R14 732 -0.26% 59.84 mph Safe -
235/85R13 730 -0.52% 59.69 mph Safe -
255/75R14 738 0.63% 60.38 mph Safe -
255/80R13 738 0.64% 60.38 mph Safe -
265/75R13 728 -0.79% 59.53 mph Safe -
265/70R14 727 -0.94% 59.44 mph Safe -
245/75R14 723 -1.42% 59.15 mph Within tolerance -
245/80R13 722 -1.54% 59.08 mph Within tolerance -
245/85R13 747 1.80% 61.08 mph Within tolerance -
245/80R14 748 1.92% 61.15 mph Within tolerance -
265/75R14 753 2.67% 61.60 mph Within tolerance -
265/80R13 754 2.82% 61.69 mph Within tolerance -
225/85R13 713 -2.84% 58.30 mph Within tolerance -
255/75R13 713 -2.84% 58.30 mph Within tolerance -
255/70R14 713 -2.85% 58.29 mph Within tolerance -
235/85R14 755 2.94% 61.77 mph Within tolerance -

205/75R15; factory fitment (1984–1987)

Overall diameter 688.5 mm (27.11 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-1 (next rim size up)

Plus-1 keeps overall diameter constant while bumping rim diameter by one inch and dropping aspect ratio by ten points. The standard daily-driver upgrade; sharper steering response, mild ride penalty, modest tire-cost premium.

SizeOD (mm)True @ 60 mphVerdictIn catalog
235/60R16 688 -0.01% 59.99 mph Safe -
175/80R16 686 -0.31% 59.82 mph Safe -
215/65R16 686 -0.38% 59.77 mph Safe -
185/75R16 684 -0.67% 59.60 mph Safe -
205/70R16 693 0.71% 60.43 mph Safe -
195/70R16 679 -1.32% 59.21 mph Within tolerance -
195/75R16 699 1.51% 60.91 mph Within tolerance -
225/65R16 699 1.51% 60.91 mph Within tolerance Yes
225/60R16 676 -1.76% 58.95 mph Within tolerance -
185/80R16 702 2.02% 61.21 mph Within tolerance -
175/85R16 704 2.24% 61.34 mph Within tolerance -
205/65R16 673 -2.27% 58.64 mph Within tolerance -
215/70R16 707 2.75% 61.65 mph Within tolerance -
175/75R16 669 -2.85% 58.29 mph Within tolerance -

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
215/60R17 690 0.19% 60.11 mph Safe Yes
235/55R17 690 0.26% 60.16 mph Safe Yes
185/70R17 691 0.33% 60.20 mph Safe -
195/65R17 685 -0.46% 59.72 mph Safe -
175/75R17 694 0.84% 60.51 mph Safe -
225/55R17 679 -1.34% 59.20 mph Within tolerance Yes
205/65R17 698 1.42% 60.85 mph Within tolerance -
205/60R17 678 -1.55% 59.07 mph Within tolerance -
175/70R17 677 -1.70% 58.98 mph Within tolerance -
225/60R17 702 1.93% 61.16 mph Within tolerance Yes
185/65R17 672 -2.35% 58.59 mph Within tolerance -
195/70R17 705 2.37% 61.42 mph Within tolerance -
215/55R17 668 -2.93% 58.24 mph Within tolerance Yes

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
235/65R15 687 -0.29% 59.83 mph Safe -
215/70R15 682 -0.94% 59.43 mph Safe -
225/70R15 696 1.09% 60.65 mph Within tolerance -
215/75R15 704 2.18% 61.31 mph Within tolerance -
225/65R15 674 -2.18% 58.69 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
195/85R14 687 -0.20% 59.88 mph Safe -
195/80R15 693 0.65% 60.39 mph Safe -
185/85R15 696 1.02% 60.61 mph Within tolerance -
175/85R15 679 -1.45% 59.13 mph Within tolerance -
185/80R15 677 -1.67% 59.00 mph Within tolerance -
195/75R15 674 -2.18% 58.69 mph Within tolerance -
185/85R14 670 -2.67% 58.40 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
225/80R13 690 0.25% 60.15 mph Safe -
235/70R14 685 -0.57% 59.66 mph Safe -
225/75R14 693 0.67% 60.40 mph Safe -
205/80R14 684 -0.71% 59.57 mph Safe -
235/75R13 683 -0.84% 59.49 mph Safe -
215/85R13 696 1.05% 60.63 mph Within tolerance -
205/85R13 679 -1.42% 59.15 mph Within tolerance -
215/75R14 678 -1.51% 59.09 mph Within tolerance -
215/80R14 700 1.61% 60.97 mph Within tolerance -
215/80R13 674 -2.08% 58.75 mph Within tolerance -
205/85R14 704 2.27% 61.36 mph Within tolerance -
235/80R13 706 2.57% 61.54 mph Within tolerance -
225/70R14 671 -2.60% 58.44 mph Within tolerance -
235/75R14 708 2.85% 61.71 mph Within tolerance -
205/70R15 668 -2.98% 58.21 mph Within tolerance -
205/80R15 709 2.98% 61.79 mph Within tolerance -

215/75R15; factory fitment (1993–1994)

Overall diameter 703.5 mm (27.70 in). Alternatives below are grouped by upgrade intent; every one is inside the ±3% safe-fit envelope for this size.

Plus-1 (next rim size up)

Plus-1 keeps overall diameter constant while bumping rim diameter by one inch and dropping aspect ratio by ten points. The standard daily-driver upgrade; sharper steering response, mild ride penalty, modest tire-cost premium.

SizeOD (mm)True @ 60 mphVerdictIn catalog
185/80R16 702 -0.16% 59.91 mph Safe -
245/60R16 700 -0.44% 59.74 mph Safe -
215/70R16 707 0.55% 60.33 mph Safe -
195/75R16 699 -0.65% 59.61 mph Safe -
225/65R16 699 -0.65% 59.61 mph Safe Yes
235/65R16 712 1.19% 60.72 mph Within tolerance -
205/70R16 693 -1.44% 59.14 mph Within tolerance -
205/75R16 714 1.48% 60.89 mph Within tolerance -
195/80R16 718 2.12% 61.27 mph Within tolerance -
235/60R16 688 -2.15% 58.71 mph Within tolerance -
185/85R16 721 2.47% 61.48 mph Within tolerance -
215/65R16 686 -2.50% 58.50 mph Within tolerance -
225/70R16 721 2.54% 61.53 mph Within tolerance -
185/75R16 684 -2.79% 58.33 mph Within tolerance -

Plus-2 (two rim sizes up)

Plus-2 lifts rim diameter by two inches with a twenty-point aspect drop. Noticeable ride penalty, higher pothole risk, and a meaningful tire-cost premium. Suitable for performance trims and aesthetic upgrades.

SizeOD (mm)True @ 60 mphVerdictIn catalog
195/70R17 705 0.18% 60.11 mph Safe -
225/60R17 702 -0.24% 59.86 mph Safe Yes
245/55R17 701 -0.31% 59.81 mph Safe -
205/65R17 698 -0.74% 59.56 mph Safe -
185/75R17 709 0.82% 60.49 mph Safe -
215/65R17 711 1.11% 60.67 mph Within tolerance -
235/60R17 714 1.46% 60.88 mph Within tolerance -
185/70R17 691 -1.81% 58.92 mph Within tolerance -
235/55R17 690 -1.88% 58.87 mph Within tolerance Yes
215/60R17 690 -1.95% 58.83 mph Within tolerance Yes
205/70R17 719 2.17% 61.30 mph Within tolerance -
195/65R17 685 -2.59% 58.45 mph Within tolerance -
195/75R17 724 2.96% 61.77 mph Within tolerance -
225/65R17 724 2.96% 61.77 mph Within tolerance Yes

Same rim, wider footprint

Same rim diameter as your OEM, just a wider footprint. Increases grip and footprint contact at the cost of fuel economy and steering effort. Confirm fender clearance at full lock before purchase.

SizeOD (mm)True @ 60 mphVerdictIn catalog
245/65R15 700 -0.57% 59.66 mph Safe -
235/70R15 710 0.92% 60.55 mph Safe -
225/70R15 696 -1.07% 59.36 mph Within tolerance -
225/75R15 719 2.13% 61.28 mph Within tolerance -
235/65R15 687 -2.42% 58.55 mph Within tolerance -
245/70R15 724 2.91% 61.75 mph Within tolerance -

Winter / narrower contact

Narrower than OEM, aspect ratio raised to preserve overall diameter. Higher contact pressure improves snow and slush bite; the Nokian-style rule of one width step down for winter on the same overall diameter.

SizeOD (mm)True @ 60 mphVerdictIn catalog
205/85R14 704 0.09% 60.05 mph Safe -
205/80R15 709 0.78% 60.47 mph Safe -
185/85R15 696 -1.14% 59.32 mph Within tolerance -
195/85R15 713 1.28% 60.77 mph Within tolerance -
195/80R15 693 -1.49% 59.10 mph Within tolerance -
205/75R15 689 -2.13% 58.72 mph Within tolerance -
195/85R14 687 -2.33% 58.60 mph Within tolerance -
205/80R14 684 -2.83% 58.30 mph Within tolerance -

Other geometric alternatives

Geometrically valid alternatives that don't fit a named category. Often combinations of rim and aspect change that happen to land in tolerance.

SizeOD (mm)True @ 60 mphVerdictIn catalog
235/80R13 706 0.38% 60.23 mph Safe -
215/80R14 700 -0.55% 59.67 mph Safe -
235/75R14 708 0.65% 60.39 mph Safe -
245/70R14 699 -0.70% 59.58 mph Safe -
245/75R13 698 -0.82% 59.51 mph Safe -
215/85R13 696 -1.11% 59.33 mph Within tolerance -
225/85R13 713 1.31% 60.78 mph Within tolerance -
225/75R14 693 -1.48% 59.11 mph Within tolerance -
225/80R14 716 1.72% 61.03 mph Within tolerance -
225/80R13 690 -1.89% 58.87 mph Within tolerance -
215/85R14 721 2.50% 61.50 mph Within tolerance -
245/80R13 722 2.66% 61.59 mph Within tolerance -
235/70R14 685 -2.69% 58.39 mph Within tolerance -
245/75R14 723 2.79% 61.67 mph Within tolerance -
235/75R13 683 -2.96% 58.23 mph Within tolerance -

Which upsize path fits your priorities?

Every option on this page is inside the ETRTO ±3% overall-diameter tolerance, so any of them is mechanically safe on the factory rim geometry. The difference is what each trades. Use this to pick the category, then read the verdict table above for the exact sizes.

CategoryRide comfortHandlingFuel economyRoad noiseTire cost
Plus-1Slightly firmerSharper≈ neutral≈ neutralModest premium
Plus-2FirmerSharpestSlightly worseSlightly higherHigher premium
Wider (same rim)≈ neutralMore gripSlightly worseSlightly higherModest premium
Winter narrowerSofterSofter dry≈ neutralLower≈ neutral
Narrower (same rim)SofterLess gripBetterLowerOften cheaper
OEM-equivalent≈ OEM≈ OEM≈ OEM≈ OEM≈ OEM

"≈" means no meaningful change versus the factory size. Comfort and noise assume the same tire model and load rating; switching brand or category (touring → performance) usually moves these more than the size change does.

Winter setup for the Jeep Grand Wagoneer

For winter, the European engineering rule is to step down one width while raising aspect ratio to hold the same overall diameter; the "Winter / narrower contact" rows in the table above. A narrower footprint concentrates the vehicle's weight over less rubber, raising contact pressure so the tread bites through snow and slush instead of floating on it. Keep the overall diameter within ±3% of 285/45R22 so ABS, TPMS, and (on AWD trims) the center coupling stay inside their factory calibration. Fit four matching winter tires, never two.

FAQ

Can I put bigger tires on my Jeep Grand Wagoneer?
Yes; within limits. Any size in the tables above is inside the ETRTO ±3% overall-diameter tolerance, which keeps speedometer, TPMS, and ABS calibration intact. The Plus-1 category is the standard bigger-wheel upgrade; Plus-2 is the aesthetic/performance maximum. Sizes beyond ±3% are excluded because they push those systems out of factory range and can rub at full steering lock.
What is the OEM tire size for the Jeep Grand Wagoneer?
The Jeep Grand Wagoneer shipped with 6 distinct factory tire sizes across its years and trims; each is listed above as its own section with the alternatives for that size. 285/45R22 is the most common. Check the door-jamb placard or your owner's manual for your specific year and trim.
Will bigger tires hurt my Jeep Grand Wagoneer's fuel economy or ride?
Plus-1 is close to neutral on both. Plus-2 and wider sizes add rotating mass and footprint, which costs a little fuel economy and ride comfort for sharper steering and grip. The decision matrix above shows the trade-off per category. Staying within ±3% overall diameter means the transmission and speedometer are unaffected.
Do I need new wheels to change tire size on my Jeep Grand Wagoneer?
Not for same-rim changes (wider, narrower, winter-narrower keep your factory rim diameter). Plus-1 and Plus-2 raise rim diameter and require wheels in the new diameter with a compatible bolt pattern and offset; check the wheel bolt-pattern page linked below before buying.

Sources & methodology

Last verified 2026-05-17 against the standards below.

  1. ETRTO 2024 Standards Manual §2.3 (section width, aspect ratio, overall diameter formula). European Tyre and Rim Technical Organisation, Brussels.
  2. SAE J1349 (speedometer accuracy reference envelope).
  3. NHTSA FMVSS 138 Tire Pressure Monitoring Systems; rev/mile calibration requirements.
  4. Tire Industry Association Technical Bulletin TB-2019-04 (plus-sizing guidance).
  5. Nokian Tyres "Why winter tyres should be narrower" technical bulletin, 2019.