Additional information
| Speed Index | |
|---|---|
| Brand | |
| width | |
| profile | |
| diameter | |
| Load Index | |
| Season | |
| Vehicle Type | Passenger |
| Sidewall | Black Sidewall |
| XL | XL |
| Min Wheel Width | 10 |
| Max Wheel Width | 13 |
| uTQG | 200 A A |
315/35R21 Hankook K137A Summer
$443.00
Out of stock
Full specifications
Everything you need to know about the 315/35R21 Hankook K137A Summer All Season 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 315/35R21 Hankook K137A Summer right for you?
315/35R21 Hankook K137A Summer is a all season / passenger fitment tire, with Ontario and Quebec delivery details on this page.
Free shipping • 1–3 business days (Ontario and Quebec)OutofstockOntario & Quebec focusedFull specs, fitment, and FAQ on page
A good fit if you
- Everyday driving in moderate conditions — commuting, highway, light rain, mild temperatures.
- Drivers who already run a dedicated winter set for Quebec’s cold months.
- Factory fitments or vehicles that specifically require XL-rated tires.
Think twice if you need
- Quebec winter compliance — a standard all-season without the 3PMS symbol doesn’t satisfy the December to March mandate.
| 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. |
| XYZTires | Transparent Ontario and Quebec delivery details, fitment context, and product-specific FAQ on every page. |
Quick Specs
- Size: 315/35R21
- Brand / Model: Hankook K137A Summer
- Season: All Season
- Vehicle Type: Passenger
- Load / Speed: 111Y (Load index 111 supports up to 1090 kg per tire; speed rating Y rated up to 300 km/h)
- Certifications: XL (Extra Load)
- Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
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 111 means each tire can carry up to 1090 kg. Check your door jamb placard — the tire needs to meet or beat the load rating your manufacturer specifies.
- Speed rating Y is the maximum sustained speed this tire is designed to handle under proper conditions. That works out to 300 km/h under correct load and inflation — not a target, just the rated ceiling.
- UTQG 200 A 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.
- All Season tires handle mild year-round conditions well, but they’re not winter tires. In Quebec, a standard all-season doesn’t satisfy the mandatory winter tire requirement unless it specifically carries the 3PMS symbol.
- 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 315/35R21 Hankook K137A Summer is a all season tire, built around a 315 mm section width for a 21-inch wheel.
In practical terms, this size gives you a 35-series sidewall of about 110 mm paired with a 21-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 111 and speed rating Y (~300 km/h), UTQG 200 A A when provided by the manufacturer.
About the 315/35R21 tire size
The 315/35R21 breaks down into three numbers:
- 315 — tread width in millimetres, measured across the contact patch
- 35 — sidewall height as a percentage of the tread width (roughly 110 mm of rubber between road and rim)
- R21 — radial construction, for a 21-inch wheel
The 315/35R21 size is commonly found on performance vehicles and heavy duty trucks. 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 — Hankook K137A Summer 315/35R21
- XL (Extra Load) rated — handles higher inflation pressures and heavier loads than a standard-load equivalent.
- UTQG 200 A A — manufacturer-assigned treadwear, traction, and temperature grades. Useful for comparing within the same brand, but not a mileage guarantee.
- Service description 111Y: load index 111 means each tire carries up to 1090 kg, speed rating Y is rated to 300 km/h.
- 315/35R21 mounts on a 21-inch wheel.
Quebec winter tire mandate — all-season note
Quebec mandates winter tires from December 1 to March 15. The 315/35R21 Hankook K137A Summer is an all season tire — and without the 3PMS symbol, a standard all-season does not satisfy Quebec’s mandatory winter tire rule. If you drive in Quebec between December and March, a dedicated winter or all-weather tire is the right call. requirement unless they carry the 3PMS symbol. Consider a dedicated winter or all weather tire for Quebec driving.
Vehicles that fit 315/35R21 tires
Based on our fitment database, this size is used on:
- 2020–2024 BMW X6
- 2019–2024 BMW X5
- 2019–2023 Porsche Cayenne
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:
More tires — Ontario & Quebec delivery
Common questions — 315/35R21 Hankook K137A Summer All Season
What does the 315/35R21 tire size mean?
Break it down and 315/35R21 tells you three things: the tread is 315 mm wide, the sidewall stands at 35% of that — about 110 mm of rubber between road and rim — and it fits a 21-inch wheel. You’ll find this size most often on performance vehicles and heavy duty trucks.
Is the 315/35R21 Hankook K137A Summer an All Season tire?
Yes — the 315/35R21 Hankook K137A Summer is categorized as an All Season tire. Standard all-season tires handle mild year-round conditions but don’t meet Quebec’s mandatory winter tire requirement on their own. If you drive in Quebec between December and March, look at a dedicated winter or all-weather tire that carries the 3PMS symbol.
What does the 111Y rating mean on the 315/35R21 Hankook K137A Summer?
The 111Y on the Hankook K137A Summer breaks into two numbers: load index 111, meaning each tire carries up to 1090 kg, rated to approximately 300 km/h; and speed rating Y, rated to 300 km/h under proper load and inflation. Your door jamb placard lists the minimum ratings your vehicle requires — match or exceed both.
Is the 315/35R21 Hankook K137A Summer 3PMS rated?
No — the Hankook K137A Summer 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 315/35R21 Hankook K137A Summer studdable?
Studdable status is not confirmed for this tire. Reach out and we’ll check the manufacturer specs for you.
Does the 315/35R21 Hankook K137A Summer support run flat driving?
No — the Hankook K137A Summer 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 315/35R21 Hankook K137A Summer an XL (extra load) tire?
Yes — the Hankook K137A Summer 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 Y mean on the 315/35R21 Hankook K137A Summer?
Speed rating Y on the Hankook K137A Summer corresponds to a maximum sustained speed of 300 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 315/35R21 Hankook K137A Summer with delivery to Ontario or Quebec?
Yes — we ship the 315/35R21 Hankook K137A Summer across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
Why buy the 315/35R21 Hankook K137A Summer 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.
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