Detailed specifications
On this page you’ll find the full specifications table for this 275/40R20 Toyo Proxes ST III All Season tire. This includes manufacturer and listing details (when available) like construction, load and speed rating, certifications (3PMS / studdable / run-flat / XL), and any published ratings such as UTQG (when provided).
Quick Specs
- Size: 275/40R20
- Brand/Model: Toyo Proxes ST III
- Season: All Season
- Certifications: XL (Extra Load)
- Shipping: Free shipping • 1–3 business days (Ontario and Quebec)
275/40R20 Toyo Proxes ST III All Season
Category: Truck/SUV All Season – Sport
The Toyo Proxes ST III is a sporty all-season tire built for light trucks and SUVs that provides a balance of good looks and excellent performance. An all new directional tread design improves wet breaking distances by using a silica-based tread compound and increasing the tread width. The Proxes ST III has multi-wave sipes, directional should blocks, and lightning grooves that enable faster water evacuation, improve driving stability, and minimize tread wear for a smooth and quiet ride. It also has a 65,000km tread life warranty for all sizes.
XL (Extra Load) rating indicated.
How this tire is positioned
275/40R20 Toyo Proxes ST III is positioned as a all season / truck/suv all season – sport tire built around a 275 mm section width and 20-inch wheel fitment.
In practical terms, this size combines a 40-series sidewall of about 110 mm with a 20-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature-wise, this listing indicates an XL extra-load rating, UTQG 500 A A when provided by the manufacturer.
About the 275/40R20 tire size
The 275/40R20 size breaks down like this:
- 275 = tire width in millimetres
- 40 = sidewall height as a percentage of width (approx. 110 mm)
- R20 = fits an 20-inch wheel
If you’re matching an existing set, confirm the full size on your sidewall before ordering.
Key features on this Toyo Proxes ST III in 275/40R20
Highlights based on the details available for this tire:
- XL (Extra Load) rating indicated.
- UTQG: 500 A A (when provided by manufacturer).
- Size: 275/40R20 (fits an 20-inch wheel).
- Season category: All Season.
Warranty
- Warranty: 64000
- Warranty coverage is provided by the manufacturer and may vary by application and service conditions.
FAQ: 275/40R20 Toyo Proxes ST III All Season
What does 275/40R20 mean on a tire?
It indicates the tire’s width (275 mm), sidewall ratio (40%), and wheel diameter (R20).
Is this a All Season tire?
Yes — this tire is categorized as All Season.
Is this tire 3PMS rated?
This listing does not specify 3PMS for this tire.
Is this tire studdable?
This listing does not specify whether this tire is studdable. Check local rules before installing studs.
Does it support run-flat driving?
No — this tire is not listed as run-flat.
Is this tire XL (extra load)?
Yes — this tire is listed as XL (extra load).
How long does delivery take in Ontario and Quebec?
Free shipping • 1–3 business days (Ontario and Quebec)
Other available sizes for Toyo Proxes ST III