On this page you’ll find the full specifications for this 315/40R21 Toyo Proxes Sport SUV 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: 315/40R21
Brand / Model: Toyo Proxes Sport SUV
Season: All Season
Certifications: —
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
315/40R21 Toyo Proxes Sport SUV All Season
How this tire is positioned
315/40R21 Toyo Proxes Sport SUV is positioned as a all season tire built around a 315 mm section width and 21-inch wheel fitment.
In practical terms, this size combines a 40-series sidewall of about 126 mm with a 21-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
About the 315/40R21 tire size
The 315/40R21 size breaks down as follows:
315 — tread width in millimetres
40 — sidewall height as a percentage of tread width (approx. 126 mm)
R21 — fits a 21-inch rim
The 315/40R21 size is commonly found on performance vehicles and heavy-duty trucks. If you’re matching an existing set, confirm the full size marking on your sidewall before ordering.
Key features — Toyo Proxes Sport SUV in 315/40R21
Size: 315/40R21 (fits an 21-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 315/40R21 Toyo Proxes Sport SUV 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.
Warranty
Warranty: 40000
This warranty is provided by Toyo and applies subject to normal use and service conditions. Contact us or the manufacturer directly for claim procedures and exclusions.
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 — 315/40R21 Toyo Proxes Sport SUV All Season
What does the 315/40R21 tire size mean?
The 315/40R21 size indicates a tread width of 315 mm, a sidewall ratio of 40% (approximately 126 mm tall), and a 21-inch rim diameter. This size is commonly found on performance vehicles and heavy-duty trucks.
Is the 315/40R21 Toyo Proxes Sport SUV a All Season tire?
Yes — the 315/40R21 Toyo Proxes Sport SUV 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 315/40R21 Toyo Proxes Sport SUV 3PMS rated?
The listing for the 315/40R21 Toyo Proxes Sport SUV does not specify 3PMS certification. Verify with the manufacturer’s specification sheet for confirmation.
Is the 315/40R21 Toyo Proxes Sport SUV studdable?
The listing for the 315/40R21 Toyo Proxes Sport SUV does not specify studdable capability. Contact us or check the manufacturer’s documentation for confirmation.
Does the 315/40R21 Toyo Proxes Sport SUV support run-flat driving?
No — the 315/40R21 Toyo Proxes Sport SUV is not listed as run-flat.
Is the 315/40R21 Toyo Proxes Sport SUV an XL (extra load) tire?
The listing for the 315/40R21 Toyo Proxes Sport SUV does not specify XL (extra load). Refer to the manufacturer’s documentation for clarification.
Can I order the 315/40R21 Toyo Proxes Sport SUV with delivery to Ontario or Quebec?
Yes — XYZTires ships the 315/40R21 Toyo Proxes Sport SUV to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).