Free shipping 

Best price guarantee 

SimpleCrew exclusive savings 

0% financing options 

Free tire replacement coverage 

24/7 roadside assistance 

Easy returns 

Shop 21" Tire Sizes

From all season tires to performance tires, SimpleTire offers a wide range of 21” tires meant to complement any driving style or road condition.

It’s not your imagination; wheels are getting bigger. Fifteen years ago, 16” or 17” rims were the norm for a lot of new vehicles. Now it’s not at all uncommon to see light trucks, SUVs, CUVs and sedans rolling on 20” or 21” rims.

Most popular 21" tire sizes

245/30R21

All 21" tire sizes

Shop tires by

  • Tire size

  • Tire Type

Find your tire size

How to find your tire size

Check the inside frame of the driver’s side door, inside the glove box door, your driver’s manual, or your tire’s sidewall in order to find your tire size.

Learn more on how to read your tire size.

Learn more about your tire size & serial number

You may also be interested in tire service descriptions which tell you a tire's load limit and speed rating.