255/35R21 tires are ready to ship now, with 16 in stock spanning seven brands including Continental, Pirelli, Hankook, Nokian, Toyo, Falken and Laufenn. Whether you need a grippy summer performance tire, a do-anything all-season or a dedicated EV winter tire, this page gathers every 255/35R21 option in one place. Every order ships free, Affirm financing is available, and fast delivery comes from a nationwide network.
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Showing 16 in stock.
What 255/35R21 tires means
The 255/35R21 code describes the exact geometry of the tire so it fits your wheel and behaves the way your vehicle expects. Here's the breakdown:
- 255 — the section width is 255 mm (about 10.04 inches) across the widest part of the tire.
- 35 — the aspect ratio, meaning the sidewall height is 35% of the section width, working out to roughly 89.2 mm (3.51 inches).
- R21 — a radial tire built for a 21-inch rim diameter.
Add it all up and the overall tire diameter is about 28.03 inches, turning roughly 720 revolutions per mile. Those figures matter to you directly: the short 3.51-inch sidewall delivers sharp, responsive steering but leaves less cushion over rough pavement, while matching the original overall diameter keeps your speedometer and odometer accurate and preserves proper clearance inside the wheel well. Straying from these numbers can throw off readings and cause rubbing, so this size is the reference point to shop within.
Vehicles & uses
This is a large-diameter, low-profile fitment. The tall 21-inch rim paired with a slim sidewall is also common on performance-oriented crossovers and EVs, which is why several models here are tuned for SUV and electric-vehicle duty. In short, it's a size built for vehicles where sharp response and a planted feel matter more than a soft ride. For other fitments, browse all tires.
Brands & options in 255/35R21 tires
You'll find a wide spread of tiers in this size, all in one place.
Premium performance
For flagship grip and refinement, look at Pirelli with the P-Zero (PZ4) 98Y and its 98W counterpart, plus Continental options like the SportContact 7 and the ContiSportContact 6.
All-season & versatile
For year-round use, the Continental ExtremeContact DWS06 PLUS, the low-rolling-resistance EcoContact6 Q, and the Toyo Proxes Sport A/S+ cover a range of driving needs. Hankook offers the EV-focused iON evo AS SUV in two builds (1038575 and 1033702).
Winter & value
For cold-climate and EV winter driving, Nokian brings the Hakkapeliitta R5 EV. On the value end, Laufenn and Falken round out the lineup with the X FIT HP LA41 and the Azenis FK460 A/S.
How to choose
Season: Pick a summer tire for maximum dry and wet grip in warm climates, an all-season if you want a single tire for mild winters, or a dedicated winter tire like the Hakkapeliitta R5 EV where snow and ice are regular.
Treadwear & UTQG: The UTQG rating shows relative treadwear, traction and temperature grades. A higher treadwear number generally suggests longer life, while performance summer tires often trade longevity for grip.
Load index & speed rating: Match or exceed the load index and speed rating your vehicle requires; many 255/35R21 tires carry an XL (extra load) designation for the added weight of larger vehicles and EVs. Confirm the exact figures on each product page.
Warranty: Where a mileage or road-hazard warranty is offered, it's noted on the individual tire's page — a useful tiebreaker between similar options.
Frequently Asked Questions
What does 255/35R21 tires mean?
It describes a radial tire that's 255 mm wide (about 10.04 inches) with a sidewall 35% of that width (roughly 3.51 inches), built for a 21-inch rim. The overall diameter is about 28.03 inches and it turns around 720 revolutions per mile.
How much do 255/35R21 tires cost?
Current pricing for 255/35R21 tires runs from about $240.77 to $603.00 per tire, depending on the brand, model and performance level.
How many 255/35R21 tires are available?
There are 16 in stock across seven brands — Continental, Pirelli, Hankook, Nokian, Toyo, Falken and Laufenn — covering summer, all-season and winter options.