235/45R18 Winter Tires in Newfoundland: GT Radial vs Pirelli
Shopping for 235/45R18 winter tires in Newfoundland means looking beyond the size alone. Two tires can share the same dimensions and load index while carrying different speed ratings, features and intended fitments. The best choice is the one that meets your vehicle manufacturer’s requirements and matches how you drive through Newfoundland’s cold pavement, slush, snow and ice.
True North Tires currently lists two active studless winter options in this size: the GT Radial WinterPro2 Sport XL 98V and the Pirelli Ice Friction XL 98H. This guide explains their verified specifications and the checks to make before ordering.
What does 235/45R18 mean?
- 235 is the nominal section width in millimetres.
- 45 is the aspect ratio, meaning the sidewall height is approximately 45% of the section width.
- R indicates radial construction.
- 18 is the compatible wheel diameter in inches.
The remaining service description is equally important. Both products discussed here carry an XL extra-load designation and a load index of 98, but one has a V speed rating and the other an H rating. Check the driver-door tire placard and owner’s manual rather than assuming any 235/45R18 tire is suitable.
Current 235/45R18 studless winter options
GT Radial WinterPro2 Sport 235/45R18 XL 98V
The GT Radial WinterPro2 Sport 235/45R18 XL 98V is listed as a studless winter tire. Its confirmed listing details include:
- Size: 235/45R18
- XL extra-load designation
- Load index: 98
- Speed rating: V
- Studless winter construction
This option is worth considering when the vehicle requires a compatible 235/45R18 XL tire and a V-rated service description. Its studless construction avoids the need for metal studs while providing a tire designed specifically for winter use.
Pirelli Ice Friction 235/45R18 XL 98H
The Pirelli Ice Friction 235/45R18 XL 98H is also listed as a studless winter tire. Its confirmed listing details include:
- Size: 235/45R18
- XL extra-load designation
- Load index: 98
- Speed rating: H
- Studless winter construction
- ELECT and NCS designations shown in the product name
The Pirelli is a relevant option for compatible vehicles requiring an H-rated 235/45R18 XL winter tire. Because manufacturer-specific technology designations can apply to particular vehicle needs, confirm compatibility before purchasing rather than selecting solely by brand or size.
GT Radial vs Pirelli: what should you compare?
Both current products share the same size, XL designation and 98 load index. The main confirmed difference in their service descriptions is the speed rating: V for the GT Radial and H for the Pirelli.
Start with the vehicle specification
The original tire placard gives the approved size and recommended cold inflation pressure. The owner’s manual may also identify permitted winter configurations. A lower or different speed rating should only be used when appropriate for the vehicle and local requirements, with the driver aware of the tire’s limitations.
Consider your normal winter route
Think about the conditions you encounter most often: urban roads, long highway commutes, exposed coastal routes, hills, early-morning travel or secondary roads that may not be cleared immediately. Both products are dedicated studless winter tires, but fitment and service ratings remain the first filters.
Compare the complete installed package
If you are also purchasing winter wheels, confirm wheel width, bolt pattern, offset, centre bore and brake clearance. An 18-inch diameter alone does not guarantee wheel compatibility.
Why use four matching winter tires?
A matching set of four helps preserve balanced traction and predictable steering, braking and cornering. Installing winter tires on only one axle can create a substantial grip difference between the front and rear of the vehicle.
If a single tire must be replaced later, tread depth and construction should be considered carefully. On some all-wheel-drive vehicles, large circumference differences can also be a concern; consult the owner’s manual.
Caring for 235/45R18 winter tires
Check cold tire pressure
Air pressure typically falls as temperatures drop. Check pressure when the tires are cold and use the vehicle manufacturer’s recommendation, not the maximum pressure printed on the sidewall.
Watch for pothole damage
The 45-series sidewall is relatively low-profile, so pothole impacts deserve prompt attention. Inspect for sidewall bulges, cuts, vibration, air loss or wheel damage after a significant impact.
Monitor tread and alignment
Inspect tread depth throughout the winter and look for uneven shoulder or centre wear. If the vehicle pulls, the steering wheel sits off-centre or wear becomes irregular, have the alignment and suspension checked.
Frequently asked questions
Are 235/45R18 98V and 235/45R18 98H identical?
No. They share the same size and load index, but the speed ratings differ. Confirm the required service description for your vehicle before ordering.
Are both of these tires studless?
Yes. The active GT Radial WinterPro2 Sport and Pirelli Ice Friction listings discussed here are both categorized as studless winter tires.
Can I use 235/45R18 if my car currently has another size?
Only if that configuration is approved for the vehicle. Changing size can affect clearance, load capacity, handling and speedometer accuracy.
Should 235/45R18 winter tires go on all four wheels?
Yes. Four matching winter tires are recommended for balanced vehicle behaviour in winter conditions.
Shop 235/45R18 winter tires in Newfoundland
True North Tires can help you confirm fitment and compare current 235/45R18 winter options. Visit TrueNorthTires.ca or call 709-714-1901 for availability, fitment help and Newfoundland delivery information.