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Michelin Pilot Sport All Season 4
Outfit your performance vehicle with the Michelin Pilot Sport All Season 4 275/45R21 110Y XL BSW, an ultra-high-performance all-season tire built for drivers who want sharp steering, strong wet and dry grip, winter confidence, and daily usability from one performance tire. This 275/45R21 Pilot Sport All Season 4 is a popular responsive fitment for select Audi Q7, Porsche Cayenne, Tesla Model X, Genesis GV80, BMW X5, Mercedes-Benz GLE models, plus similar performance vehicles using 21-inch wheels.
Why choose the Michelin Pilot Sport All Season 4 in 275/45R21?
Built for performance SUVs, EV crossovers, and luxury sport utility vehicles: The 110Y XL rating adds extra load capacity for heavier trims, performance packages, EVs, cargo, passengers, and staggered setups.
Ultra-high-performance all-season grip: The Pilot Sport All Season 4 is designed for confident performance on wet, dry, and snowy roads without moving to a dedicated summer tire.
Dynamic Response Technology: Michelin engineers the tire to distribute forces and temperatures evenly, supporting responsive handling and longer wear life.
Asymmetric performance tread: A performance-focused tread pattern with strong outer-shoulder support helps deliver lateral grip, steering precision, and planted cornering.
All-season traction details: Full-depth and interlocking sipes, biting edges, and Michelin tread-compound technology help maintain grip in rain, cold conditions, and light snow.
Popular vehicle fitments for 275/45R21 Michelin Pilot Sport All Season 4
This tire size is commonly used on select trims or staggered fitments of the Audi Q7, Porsche Cayenne, Tesla Model X, Genesis GV80, BMW X5, and Mercedes-Benz GLE. It is also a strong option for similar sports cars, performance sedans, EVs, premium crossovers, and SUVs that use the same tire size, load rating, speed rating, and wheel diameter.
Size and rating details
275/45R21: This size is designed for 21-inch wheels and helps shoppers match an original equipment, replacement, or staggered performance fitment.
110Y XL: The service description and load range identify the tire's load capacity and speed rating for compatible performance vehicles.
BSW: This version uses black sidewall styling for the finished look on the vehicle.
275/45-R21
Michelin Pilot Sport All Season 4 FAQs
Yes, Michelin lists a 45,000-mile limited treadwear warranty for the Pilot Sport All Season 4 when four tires are installed in size 275/45R21.
Customer Reviews
Mostly spirited driving on rural central Virginia roads, on 2020 AMG SLC43 biturbo
These are awesome if you want a more sportier response feel but comfortable all season and conditions. I had oem mxm4s and loved them. These are a sport upgrade where you feel the stiffness on turns. 2017 accord touring coupe Dry stopping is beyond stellar Caught in a few very heavy storms and they responded like the road was dry Possible con a very slight loss in mpgs but I don’t mind If a softer ride and mpgs are more important stick to the mxm4s otherwise you’ll enjoy these just as much
Driving a combination of interstate/rural/mountain roads. The tires are handling great. It's too early to rate the tread life.
Great tire, costs more but worth it for spirited drivers. Keep in mind, no tire achieves it's tread life.
Great customer service keep it up.