Michelin Pilot Sport All Season 4 275/45R21 XL Pilot Sport ALL Season 4
Michelin

Pilot Sport All Season 4

275/45R21 XL
All-Season
$383.99/tire $511.99
Set of 4: $1535.96
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size275/45R21 XL Pilot Sport ALL Season 4
Width275 mm
Aspect ratio45
Rim diameterR21
Load index110
Speed ratingV
Load rangeXL
SeasonAll-Season
Treadwear warranty45,000 miles
Severe snow (3PMSF)No
Run-flatNo

About the Michelin Pilot Sport All Season 4

All-Season Ultra High Performance Passenger Car tire.

Features

* Dynamic Response Technology* Asymmetric tread pattern* Distinctive full depth and interlocking sipes* Helio+ technology* Biting edges in the tread grooves* M+S Rated* 45,000 Mile/70,000 km Manufacturer's Treadwear Limited Warranty - Speed Rating: V, W, Y* 30,000 Mile/50,000 km Manufacturer's Treadwear Limited Warranty - Speed Rating: (Y)* Standard Manufacturer's Limited Warranty

Benefits

* Ensures forces and temperatures are distributed evenly for longer wear life* Places more rubber on the outer shoulder to deliver exceptional lateral grip* Provide biting edges for improved traction in wet and snowy conditions* Advanced rubber grips the road even in freezing conditions* Grab loose snow to help control acceleration and braking in winter conditions

Understanding the 275/45R21 XL size

In the size code 275/45R21, 275 is the section width in millimetres (about 10.8"). 45 is the aspect ratio — the sidewall height is 45% of the width, or roughly 123.8 mm. R21 means radial construction on a 21-inch wheel, giving an approximate overall diameter of 30.7".

The load index 110 means each tire supports up to 2,337 lbs — about 9,348 lbs across a full set of four. The speed symbol V certifies the tire to 149 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

What the Michelin Pilot Sport All Season 4 is built for

The Michelin Pilot Sport All Season 4 is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. Fitment category: Passenger Car, CAR, Performance, UHP.

Price and value

At $383.99 per tire, a full set of four costs $1535.96. That is about 24% above the average of the 73 tires we stock in this size, reflecting its position in the range. Backed by a 45,000-mile treadwear warranty, that works out to roughly $34.13 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 275/45R21 mean?

275 is the section width in millimetres, 45 is the aspect ratio (sidewall height as a percentage of width, about 123.8 mm), and R21 indicates radial construction for a 21-inch wheel. Overall diameter is approximately 30.7 inches.

What are the load and speed ratings of the Michelin Pilot Sport All Season 4 275/45R21 XL?

Its load index of 110 allows up to 2,337 lbs per tire. Its speed rating of V is certified to 149 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.

How much does a set of 4 Michelin Pilot Sport All Season 4 275/45R21 XL tires cost?

A single tire is $383.99 and a set of four is $1535.96, covered by a 45,000-mile treadwear warranty.

Does the Pilot Sport All Season 4 come in other sizes?

Yes — we stock 167 additional Pilot Sport All Season 4 sizes besides 275/45R21 XL. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 275/45R21

Goodyear Eagle Touring SCT 275/45R21 XL Eagle Touring SCT Rof Moe (Run Flat)
Goodyear
Eagle Touring SCT
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$312.74/tire
$1250.96 set of 4
Pirelli Pzero (PZ4) 275/45R21 Pzero (PZ4-Sport) (Mo)
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Pzero (PZ4)
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$1372.12 set of 4
Pirelli Pzero (PZ4) 275/45R21 Pzero (PZ4-Sport) (Mo-S) NCS
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Pzero (PZ4)
275/45R21
$341.79/tire
$1367.16 set of 4