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2026 Cadillac OPTIQ

Sport 275/40R21/XL 107H
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MICHELIN Pilot Sport EV

4.2/5 (29 reviews)
Get the most miles from your fuel tank or range from your EV batteries. Michelin's proven legacy of innovation means these tires were designed for best in class efficiency, so you can drive the distance knowing you're doing your part for the environment.
Electrified road control made to last
Front
Rear
275/40R21/XL 107W Acoustic MB
MSPN 63913
Fits my vehicle
275/40R21/XL 107W Acoustic MB
MSPN 63913
Fits my vehicle
Fitment sizes

recommended fitment sizes available

Here are other fitments available for the selected vehicle’s tire size. Those fitments can have different tire markings (Runflat technology, Manufacturer approval, Extra load…) explained in details on here https://www.michelin.ca/en/auto/learn/tires-101/tire-markings-explained

Recommended fitment sizes
275/40R21/XL 107W Acoustic MB
MSPN 63913

MICHELIN X-Ice Snow

4.7/5 (1221 reviews)
3 Peak Mountain Snowflake Symbol – tested and meets snow traction standards
Stands for mud and snow
Life doesn't stop when it snows, and you shouldn't either. Michelin tires offer maximum mobility in snow, ice, and slush conditions, keeping you in control and getting you to your destination with ease. As the only winter tires to offer a mileage warranty, you can drive with peace of mind during winter for years to come.
Built for maximum mobility and safety in winter.
Front
Rear
275/40R21/XL 107H
MSPN 21487
Fits my vehicle
275/40R21/XL 107H
MSPN 21487
Fits my vehicle
Fitment sizes

recommended fitment sizes available

Here are other fitments available for the selected vehicle’s tire size. Those fitments can have different tire markings (Runflat technology, Manufacturer approval, Extra load…) explained in details on here https://www.michelin.ca/en/auto/learn/tires-101/tire-markings-explained

Recommended fitment sizes
275/40R21/XL 107H
MSPN 21487

MICHELIN Pilot Alpin 5

4.4/5 (50 reviews)
3 Peak Mountain Snowflake Symbol – tested and meets snow traction standards
Stands for mud and snow
Life doesn't stop when it snows, and you shouldn't either. Michelin tires offer maximum mobility in snow, ice, and slush conditions, keeping you in control and getting you to your destination with ease. As the only winter tires to offer a mileage warranty, you can drive with peace of mind during winter for years to come.
Offers long lasting control in winter conditions.
Front
Rear
275/40R21/XL 107V POR
MSPN 27014
Fits my vehicle
275/40R21/XL 107V POR
MSPN 27014
Fits my vehicle
Fitment sizes

recommended fitment sizes available

Here are other fitments available for the selected vehicle’s tire size. Those fitments can have different tire markings (Runflat technology, Manufacturer approval, Extra load…) explained in details on here https://www.michelin.ca/en/auto/learn/tires-101/tire-markings-explained

Recommended fitment sizes
275/40R21/XL 107V POR
MSPN 27014