Listed are full spes for this 255/45R18 Continental ContiProContact – SSR – Run-Flat All Season tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG treadwear/traction/temperature grading, and shipping details for Ontario and Quebec.
Why choose the 255/45R18 Continental ContiProContact – SSR – Run-Flat?
255/45R18 Continental ContiProContact – SSR – Run-Flat is positioned as a all season / passenger fitment tire with clear Ontario and Quebec delivery details.
Free shipping • 1–3 business days (Ontario and Quebec)OutofstockOntario & Quebec delivery focusSpecs, fitment notes, and FAQ on page
Best fit if you want
Mild year round driving, daily commuting, and comfort focused use.
Drivers who use separate winter tires for Quebec winter months or severe cold.
EV fitments where tire load, torque, rolling resistance, and noise can matter more.
Double-check if you need
Quebec winter tire compliance unless the exact tire also carries the 3PMS symbol.
Buying option
What to compare
Lowest sticker price tires
Check shipping, stock status, delivery timing, and whether the final landed cost is still lower after checkout.
XYZTires.com
Assist with fitment context, Ontario/Quebec free delivery, and product specific FAQ.
Quick Specs
Size: 255/45R18
Brand / Model: Continental ContiProContact – SSR – Run-Flat
Season: All Season
Vehicle Type: Passenger
EV Compatible: Yes
Load / Speed: 99H (Load index 99 supports up to 775 kg per tire; speed rating H rated up to 210 km/h)
Certifications: —
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
255/45R18 Continental ContiProContact – SSR – Run-Flat
What these tire specs mean
Load Index 99 is the tire’s standardized carrying capacity, supporting up to 775 kg per tire. Use it to confirm the tire meets or exceeds the load rating listed on your vehicle placard.
Speed Rating H indicates the tire’s maximum sustained speed capability under proper load and inflation. This is approximately 210 km/h under proper load and inflation.
UTQG 500 AA A is the manufacturer treadwear, traction, and temperature grading system. It is useful for comparing tires from the same brand, but it should not be treated as an exact mileage promise.
All Season tires are made for mild year round driving, but they generally do not meet Quebec winter tire requirements unless they also carry 3PMS.
EV Compatible means the tire is marked as suitable for electric vehicles, where load, torque, rolling resistance, and noise can matter more.
Vehicle Type helps identify whether the tire is intended for passenger, light truck, commercial, or similar service categories.
Warranty coverage is manufacturer backed and depends on normal use, proper maintenance, rotation, inflation, and alignment conditions.
How this tire is positioned
255/45R18 Continental ContiProContact – SSR – Run-Flat is positioned as a all season tire built around a 255 mm section width and 18-inch wheel fitment.
In practical terms, this size combines a 45-series sidewall of about 115 mm with a 18-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature wise, this tire indicates load index 99 and speed rating H (~210 km/h), UTQG 500 AA A when provided by the manufacturer.
About the 255/45R18 tire size
The 255/45R18 size breaks down as follows:
255 — tread width in millimetres
45 — sidewall height as a percentage of tread width (approx. 115 mm)
R18 — fits a 18-inch rim
The 255/45R18 size is commonly found on mid size SUVs, crossovers, and sport sedans. If you’re matching an existing set, confirm the full size marking on your sidewall before ordering.
Key features — Continental ContiProContact – SSR – Run-Flat in 255/45R18
EV compatible design.
UTQG: 500 AA A — treadwear, traction, and temperature grading to help compare similar tires.
Load/Speed: 99H — load index 99 supports up to 775 kg per tire, while speed rating H is rated up to 210 km/h.
Size: 255/45R18 (fits an 18-inch wheel).
Quebec winter tire mandate — note for all season tires
Quebec requires winter tires from December 1 to March 15. The 255/45R18 Continental ContiProContact – SSR – Run-Flat 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: 96000
This warranty is provided by Continental and applies subject to normal use and service conditions. Contact us or the manufacturer directly for claim procedures and exclusions.
Vehicles that commonly use 255/45R18 tires
Examples from our vehicle fitment lookup include:
2017–2019 BMW 330i
2017–2019 BMW 340i
2014–2016 BMW 328i
2014–2016 BMW 335i
2012–2013 Audi A7
2012–2013 Mercedes-Benz S350
2010–2013 Mercedes-Benz S400
2007–2010 Ford Mustang
2007–2008 Jaguar XK
2007–2014 Mercedes-Benz CL550
More vehicles that use this size
2007–2010 Mercedes-Benz CL600
2007–2013 Mercedes-Benz S550
2007–2010 Mercedes-Benz S600
2006–2009 Cadillac STS-V
2005–2011 Cadillac STS
2005–2008 Pontiac Grand Prix
2005–2013 Toyota Tacoma
2004–2006 BMW X3
2004–2006 Volkswagen Phaeton
2003–2010 Audi A8
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 — 255/45R18 Continental ContiProContact – SSR – Run-Flat All Season
What does the 255/45R18 tire size mean?
The 255/45R18 size indicates a tread width of 255 mm, a sidewall ratio of 45% (approximately 115 mm tall), and a 18-inch rim diameter. This size is commonly found on mid size SUVs, crossovers, and sport sedans.
Is the 255/45R18 Continental ContiProContact – SSR – Run-Flat an All Season tire?
Yes — the 255/45R18 Continental ContiProContact – SSR – Run-Flat is categorized as an All Season tire. Standard all-season tires are designed for year round use in mild conditions but do not satisfy Quebec’s mandatory winter tire requirement unless they carry the 3PMS symbol.
What does the 99H rating mean on the 255/45R18 Continental ContiProContact – SSR – Run-Flat?
On the 255/45R18 Continental ContiProContact – SSR – Run-Flat, the service description 99H indicates a load index of 99 and a speed rating of H (approximately 210 km/h). The load index is the tire’s standardized carrying capacity, while the speed rating is the maximum sustained speed under proper load and inflation. Always match or exceed your vehicle manufacturer’s required load and speed ratings.
Is the 255/45R18 Continental ContiProContact – SSR – Run-Flat 3PMS rated?
No — the 255/45R18 Continental ContiProContact – SSR – Run-Flat is not listed as 3PMS rated.
Is the 255/45R18 Continental ContiProContact – SSR – Run-Flat studdable?
This tire, 255/45R18 Continental ContiProContact – SSR – Run-Flat is not studdable. Contact us for any questions.
Does the 255/45R18 Continental ContiProContact – SSR – Run-Flat support run flat driving?
No — the 255/45R18 Continental ContiProContact – SSR – Run-Flat is not a run flat.
Is the 255/45R18 Continental ContiProContact – SSR – Run-Flat an XL (extra load) tire?
No — the 255/45R18 Continental ContiProContact – SSR – Run-Flat is not an XL (extra load) tire.
What does speed rating H mean on the 255/45R18 Continental ContiProContact – SSR – Run-Flat?
Speed rating H on the 255/45R18 Continental ContiProContact – SSR – Run-Flat corresponds to a maximum sustained speed of approximately 210 km/h under full load. Always obey posted speed limits regardless of tire rating.
Can I order the 255/45R18 Continental ContiProContact – SSR – Run-Flat with delivery to Ontario or Quebec?
Yes — XYZTires ships the 255/45R18 Continental ContiProContact – SSR – Run-Flat to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
Why buy the 255/45R18 Continental ContiProContact – SSR – Run-Flat from XYZTires if another tire looks cheaper?
A lower sticker price is only one part of the tire purchase. Compare the final delivered cost, shipping time, stock status, fitment details, and whether the tire category matches how you drive. XYZTires focuses on clear Ontario and Quebec delivery details, product specifications, and fitment context so you can compare the real delivered value, not just the first price you see.
Other available sizes — Continental ContiProContact – SSR – Run-Flat
