Hello…fellow tire enthusiasts and savvy shoppers! Today…I’m here to tell you all about the amazing world of G2 tires…particularly the Nitto NT-555 G2 Performance tires. Whether you’re looking to enhance your car’s grip or just need a reliable set of 245/45R17 tires for your daily drive…trust me…these are the tires you want on your car!
With increased* traction…handling and wet-braking capabilities…the NT555®G2 will get you off the line quickly…provide stability in the straights and confidence in the corners. *In comparison to the original NT555 tire LARGER TREAD BLOCKS: Enhanced* traction for rear tires of vehicles with staggered fitments and high horsepower. Tire sizes with 275mm and greater section width have larger tread blocks in comparison to tires with 265mm and narrower section width. *In comparison to the original NT555 tire TWIN CENTER RIBS: Increased* dry traction & straight-line stability. *In comparison to the original NT555 tire LARGE TAPERED BLOCK: Increased* grip capabilities & better cornering stability. *In comparison to the original NT555 tire CIRCUMFERENTIAL GROOVES: Center grooves and shoulder grooves aid water evacuation and wet handling. REINFORCED SHOULDER TREADBLOCKS: Improves* dry and wet cornering grip. *In comparison to the original NT555 tire HIGH STIFFNESS AND SILICA COMPOUND: A special bonding agent increases the interaction between all the compound elements to reinforce bonds for higher compound rigidity during cornering…resulting in better handling capabilities in both wet and dry.
When it comes to unique features…G2 tires truly shine. Designed for performance and precision…the Nitto NT-555 G2 tire incorporates state-of-the-art technology that enhances your vehicle’s handling and braking capabilities. You’ll feel the difference the moment you hit the road as these performance tires provide superior cornering stability in both wet and dry conditions.
The Technology Behind Nitto NT-555 G2 Performance Tires
Nitto really put their best foot forward with the NT-555 G2 performance tires. They have an advanced tread design…crafted to provide a balanced performance. The high stiffness and advanced silica compound show that these G2 tires weren’t just made…they were engineered. You’ll enjoy a smooth…responsive drive that adapts to any roadway situation. And let’s not forget…they come in a popular size: 245/45R17!
Why Choose G2 Tires?
Why settle for any tires when you can have G2 tires? Their reliability and exceptional performance make them the best choice for your vehicle. With the Nitto NT-555 G2…you’ll access a perfect blend of longevity…performance…and affordability. Whether you’re a weekend racer or just need dependable road-going tires…these G2 tires will keep you traveling smoothly and stylishly!
G2 Tires are Your Go-to Tires
The choice is undeniably clear…G2 tires…particularly the Nitto NT-555 G2 performance tires…are the ultimate tire solution for any discerning vehicle owner. Don’t miss out on flawless handling…longevity…and the uncompromising quality you deserve for your prized car…especially with the ever-popular 245/45R17 size in mind. So why wait? Give your car the love it deserves with these incredible performance tires…and feel the difference on your very next journey!
Full specifications
Everything you need to know about the 245/45R17 Nitto NT-555 G2 – Performance Summer is on this page — what the size means, load and speed ratings, certifications like 3PMS and XL, which vehicles it fit, and how we ship to Ontario and Quebec.
Is the 245/45R17 Nitto NT-555 G2 – Performance right for you?
245/45R17 Nitto NT-555 G2 – Performance is a summer / performance focused / passenger fitment tire, with Ontario and Quebec delivery details on this page.
Free shipping • 1–3 business days (Ontario and Quebec)In stockOntario & Quebec focusedFull specs, fitment, and FAQ on page
A good fit if you
Warm weather grip, responsive steering, and performance handling — what summer tires are built for.
Drivers who already swap to a dedicated winter set when temperatures drop below 7°C.
Factory fitments or vehicles that specifically require XL-rated tires.
Think twice if you need
Winter driving — summer tires harden in the cold and won’t satisfy Quebec’s winter tire mandate.
Anyone who wants one set of tires to cover all four seasons in Ontario or Quebec.
Buying option
What to compare
Lowest sticker price
Check the shipping cost, stock status, and delivery timeline — the final landed price may look different at checkout.
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Transparent Ontario and Quebec delivery details, fitment context, and product-specific FAQ on every page.
Quick Specs
Size: 245/45R17
Brand / Model: Nitto NT-555 G2 – Performance
Season: Summer
Vehicle Type: Passenger
Load / Speed: 99W (Load index 99 supports up to 775 kg per tire; speed rating W rated up to 270 km/h)
Certifications: XL (Extra Load)
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
245/45R17 Nitto NT-555 G2 – Performance
XL (Extra Load) — built to handle higher inflation pressures and heavier loads than a standard-load tire of the same size.
What these tire specs mean
Load index 99 means each tire can carry up to 775 kg. Check your door jamb placard — the tire needs to meet or beat the load rating your manufacturer specifies.
Speed rating W is the maximum sustained speed this tire is designed to handle under proper conditions. That works out to 270 km/h under correct load and inflation — not a target, just the rated ceiling.
UTQG 320 AA A is a manufacturer-assigned grade for treadwear, traction, and temperature performance. Useful for comparing within the same brand — but it’s not a mileage guarantee, and ratings aren’t standardized across manufacturers.
Summer tires are built for maximum warm-weather grip — dry and wet roads where compound stickiness and tread design matter most. They harden in near-freezing temperatures and are not suitable for Ontario or Quebec winter driving.
XL means Extra Load. These tires run at higher inflation pressures and handle more weight than a standard-load tire of the same size. If your vehicle’s factory spec calls for XL, that’s what you need — swapping to standard load can affect ride, handling, and safety.
Vehicle type indicates the service category this tire is built for — passenger car, light truck, commercial, or other. Matching the right category matters for load capacity, handling, and safety.
Where this tire fits in
The 245/45R17 Nitto NT-555 G2 – Performance is a summer tire, built around a 245 mm section width for a 17-inch wheel.
In practical terms, this size gives you a 45-series sidewall of about 110 mm paired with a 17-inch wheel diameter — confirm this against your current tire’s sidewall marking before ordering.
Worth noting on the spec side: this tire carries an XL extra load rating, load index 99 and speed rating W (~270 km/h), UTQG 320 AA A when provided by the manufacturer.
About the 245/45R17 tire size
The 245/45R17 breaks down into three numbers:
245 — tread width in millimetres, measured across the contact patch
45 — sidewall height as a percentage of the tread width (roughly 110 mm of rubber between road and rim)
R17 — radial construction, for a 17-inch wheel
The 245/45R17 size is commonly found on light trucks, SUVs, and crossovers. Replacing a set? The full size marking is on your current tire’s sidewall — confirm width, profile, and rim diameter all match before you order.
What stands out — Nitto NT-555 G2 – Performance 245/45R17
XL (Extra Load) rated — handles higher inflation pressures and heavier loads than a standard-load equivalent.
UTQG 320 AA A — manufacturer-assigned treadwear, traction, and temperature grades. Useful for comparing within the same brand, but not a mileage guarantee.
Service description 99W: load index 99 means each tire carries up to 775 kg, speed rating W is rated to 270 km/h.
245/45R17 mounts on a 17-inch wheel.
Vehicles that fit 245/45R17 tires
Based on our fitment database, this size is used on:
2014–2019 Cadillac CTS
2014–2016 Mercedes-Benz E250
2014–2015 Mercedes-Benz E400
2010–2015 Lexus IS 250C
2010–2015 Lexus IS 350C
2008–2016 Audi A4
2008–2010 Audi A5
2008–2009 Audi TT
2007–2011 Mercedes-Benz E 550
2007–2009 Volvo S80
More vehicles that fit this size
2006–2007 BMW 525xi
2006–2013 Lexus IS 250
2006–2013 Lexus IS 350
2006–2016 Mercedes-Benz E350
2005–2011 Audi A6
2004–2007 BMW 525i
2004–2005 Mercedes-Benz Armored
2004–2006 Pontiac GTO
2003–2005 Mercedes-Benz E320
2003–2006 Mercedes-Benz E500
Find the right tires for your vehicle
Pick your year, make, model, and trim — we’ll show you everything we carry that fits, with Ontario and Quebec delivery details:
Common questions — 245/45R17 Nitto NT-555 G2 – Performance Summer
What does the 245/45R17 tire size mean?
Break it down and 245/45R17 tells you three things: the tread is 245 mm wide, the sidewall stands at 45% of that — about 110 mm of rubber between road and rim — and it fits a 17-inch wheel. You’ll find this size most often on light trucks, SUVs, and crossovers.
Is the 245/45R17 Nitto NT-555 G2 – Performance a Summer tire?
Yes — the 245/45R17 Nitto NT-555 G2 – Performance is categorized as a Summer tire.
What does the 99W rating mean on the 245/45R17 Nitto NT-555 G2 – Performance?
The 99W on the Nitto NT-555 G2 – Performance breaks into two numbers: load index 99, meaning each tire carries up to 775 kg, rated to approximately 270 km/h; and speed rating W, rated to 270 km/h under proper load and inflation. Your door jamb placard lists the minimum ratings your vehicle requires — match or exceed both.
Is the 245/45R17 Nitto NT-555 G2 – Performance 3PMS rated?
No — the Nitto NT-555 G2 – Performance doesn’t carry the 3PMS symbol. If Quebec winter compliance or severe snow traction is a priority, you’d want a tire that does.
Is the 245/45R17 Nitto NT-555 G2 – Performance studdable?
Studdable status is not confirmed for this tire. Reach out and we’ll check the manufacturer specs for you.
Does the 245/45R17 Nitto NT-555 G2 – Performance support run flat driving?
No — the Nitto NT-555 G2 – Performance is a standard tire, not a run flat. If your vehicle came equipped with run flats, your replacement set needs to be run flat-capable too.
Is the 245/45R17 Nitto NT-555 G2 – Performance an XL (extra load) tire?
Yes — the Nitto NT-555 G2 – Performance is XL rated. It’s designed for higher inflation pressures and greater load capacity than a standard-load tire of the same size. If your current tires are XL, your replacement should be too.
What does speed rating W mean on the 245/45R17 Nitto NT-555 G2 – Performance?
Speed rating W on the Nitto NT-555 G2 – Performance corresponds to a maximum sustained speed of 270 km/h under proper load and inflation. In practice, this tells you the performance category the tire is built for — not a number to chase on public roads.
Can I order the 245/45R17 Nitto NT-555 G2 – Performance with delivery to Ontario or Quebec?
Yes — we ship the 245/45R17 Nitto NT-555 G2 – Performance across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
Why buy the 245/45R17 Nitto NT-555 G2 – Performance from XYZTires if another tire looks cheaper?
A lower sticker price is worth comparing, but the full picture includes shipping cost, delivery timeline, whether it’s actually in stock, and whether the tire category is right for how you drive. We focus on making those details clear upfront — so you can compare real delivered value, not just the first number you see.
