On this page you’ll find the full specifications for this 305/55R20 Nitto Ridge Grappler All Season tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG (when provided by the manufacturer), and shipping details for Ontario and Quebec.
Quick Specs
Size: 305/55R20
Brand / Model: Nitto Ridge Grappler
Season: All Season
Certifications: —
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
305/55R20 Nitto Ridge Grappler All Season
The Nitto Ridge Grappler, welcome to the next generation of Grappler products. It features a hybrid tread pattern that provides an aggressive mud terrain style sidewall design for capable off road performance and the quieter smoother on-road experience of an all-terrain tire. The Ridge Grappler has variable pitch tread to create a pleasant highway ride, alternating shoulder grooves for debris clearing & traction, and has a dual sidewall design for a customizable look. Read Reviews
How this tire is positioned
305/55R20 Nitto Ridge Grappler is positioned as a all season tire built around a 305 mm section width and 20-inch wheel fitment.
In practical terms, this size combines a 55-series sidewall of about 168 mm with a 20-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
About the 305/55R20 tire size
The 305/55R20 size breaks down as follows:
305 — tread width in millimetres
55 — sidewall height as a percentage of tread width (approx. 168 mm)
R20 — fits a 20-inch rim
The 305/55R20 size is commonly found on full-size trucks and large SUVs. If you’re matching an existing set, confirm the full size marking on your sidewall before ordering.
Key features — Nitto Ridge Grappler in 305/55R20
Size: 305/55R20 (fits an 20-inch wheel).
Season category: All Season.
Quebec winter tire mandate — note for all-season tires
Quebec requires winter tires from December 1 to March 15. The 305/55R20 Nitto Ridge Grappler is an all-season tire — standard all-season tires generally do not satisfy Quebec’s mandatory winter tire requirement unless they carry the 3PMS symbol. Consider a dedicated winter or all-weather tire for Quebec driving.
Find tires for your vehicle
Select your year, make, model, and trim to see all compatible tires available for delivery across Ontario and Quebec:
Frequently asked questions — 305/55R20 Nitto Ridge Grappler All Season
What does the 305/55R20 tire size mean?
The 305/55R20 size indicates a tread width of 305 mm, a sidewall ratio of 55% (approximately 168 mm tall), and a 20-inch rim diameter. This size is commonly found on full-size trucks and large SUVs.
Is the 305/55R20 Nitto Ridge Grappler a All Season tire?
Yes — the 305/55R20 Nitto Ridge Grappler is categorized as a All Season tire. All-season tires are designed for year-round use in mild conditions but may not satisfy Quebec’s mandatory winter tire requirement unless they carry the 3PMS symbol.
Is the 305/55R20 Nitto Ridge Grappler 3PMS rated?
The listing for the 305/55R20 Nitto Ridge Grappler does not specify 3PMS certification. Verify with the manufacturer’s specification sheet for confirmation.
Is the 305/55R20 Nitto Ridge Grappler studdable?
The listing for the 305/55R20 Nitto Ridge Grappler does not specify studdable capability. Contact us or check the manufacturer’s documentation for confirmation.
Does the 305/55R20 Nitto Ridge Grappler support run-flat driving?
No — the 305/55R20 Nitto Ridge Grappler is not listed as run-flat.
Is the 305/55R20 Nitto Ridge Grappler an XL (extra load) tire?
No — the 305/55R20 Nitto Ridge Grappler is not listed as XL (extra load).
Can I order the 305/55R20 Nitto Ridge Grappler with delivery to Ontario or Quebec?
Yes — XYZTires ships the 305/55R20 Nitto Ridge Grappler to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).