285/30R20 tires
Prices, best picks and current deals for 285/30R20, a common size on performance cars. It fits the Chevrolet Corvette C7 Z51, Chevrolet Camaro SS 1LE, Chevrolet Camaro ZL1 and more.
Yes, this fits your Chevrolet Corvette C7 Z51. 285/30R20 is the original size on the rear axle on the 2014-2019 Chevrolet Corvette C7 Z51.
The sticker inside the driver's door is still the final word, because trim and wheel package can change the size. Back to every Chevrolet Corvette C7 Z51 size.
What 285/30R20 tires cost
Atturo AZ850
Lowest price that still brakes and wears acceptably. Fine for a second car or low annual mileage.
Listed as Atturo AZ850 285/30R20 99Y UHP Passenger Tires
Kumho Ecsta Sport S PS72
The value sweet spot: long mileage warranty, solid wet grip, sane price.
Listed as Kumho Ecsta Sport S PS72 285/30R20 99(Y) Performance Passenger Tires
Bridgestone Potenza S007A RFT
The strongest wet and snow braking and the longest tread life among what is stocked in this size. Worth it if you keep the car.
Listed as Bridgestone Potenza S007A RFT 285/30R20 99Y UHP Passenger Tires
Prices are per tire, before mounting and balancing. A set of four in the mid range comes to roughly $540 to $1,316, and a brand rebate can take another $50 to $110 off, see this month's deals.
Cheapest 285/30R20 right now
Roadtrack Terrena 285/30ZR20 99W UHP Passenger Tires
$109.96per tire $219.92 for 2 tires (one axle)
58 tires in this size, priced straight from SimpleTire's own product feed, read 13 November 2026. Stock and prices move daily, so check the shop for today's figure.
See every 285/30R20 tire in stock at SimpleTire
About the 285/30R20 size
American performance size used as a Z51 rear and a Camaro 1LE front. Extra-firm sidewalls make it sensitive to potholes.
What the numbers on the sidewall mean
A 285/30R20 tire is 285 millimeters wide, its sidewall is 30 percent of that (about 3.4 inches tall), and it mounts on a 20-inch wheel. That works out to an overall diameter of roughly 26.7 inches. Every replacement has to match all three numbers, and the load index and speed rating on the placard inside the driver's door have to be met or exceeded.
In this size our picks are marked 99Y on the Atturo AZ850 and Bridgestone Potenza S007A RFT (1,709 lb per tire, rated to 186 mph). The first number is the load index, the letter the speed rating; a tire with equal or higher values than your placard is fine, a lower one is not.
Our guide on reading a tire size walks through the markings, and this one lists every load index and speed code.
Our three picks, side by side
One tire at each price level from what the retailer stocks in this size, with the mileage warranty and UTQG grades as published by the manufacturers and their retailers. Treadwear is the number to compare: it is a relative wear rate, so 700 should last roughly twice as long as 350 on the same car.
| Atturo AZ850 | Kumho Ecsta Sport S PS72 | Bridgestone Potenza S007A RFT | |
|---|---|---|---|
| Price per tire (Nov 13, 2026) | $146.96 | $318.24 | $436.99 |
| Set of four | $587.84 | $1,272.96 | $1,747.96 |
| Service description in 285/30R20 | 99Y | — | 99Y |
| Mileage warranty | no mileage warranty | see listing | see listing |
| UTQG treadwear / traction / temperature | 320 A A (typical, varies by size) | see listing | see listing |
| Season | Ultra-high-performance all-season | see listing | see listing |
| Extras | — | — | — |
What 285/30R20 tires cost across the whole range
Of the 70 tires listed in this size, 58 are in stock today. The median is $279; a third of the tires cost $134.99 or less, and the top five percent start above $494.49. Those are per-tire prices before mounting and balancing, which adds $15 to $45 per tire at most shops, read from the retailer's feed Nov 13, 2026.
The same tires in neighboring sizes
The Atturo AZ850, our budget pick here at $146.96, is also stocked in 275/40R20 ($328), 285/35R20 ($155.96), 295/45R20 ($185.96) and 245/55R19 ($131.96). Useful if your vehicle came with a different wheel package, or if you are comparing an upsize: the same tire usually costs more per inch of wheel, not per inch of rubber. Prices per tire, from the retailer's feed Nov 13, 2026.
Winter and this size: summer tires are not winter tires
Many tires sold in this size are summer tires, and the manufacturers advise against driving them in near-freezing temperatures: the compound hardens, grip drops sharply and the tread can crack. They also carry no M+S or 3PMSF marking, so a car on summer tires fails Colorado's Passenger Vehicle Traction Law outright on the 126 miles of I-70 between Dotsero and Morrison, in force from September 1 to May 31, unless it is all-wheel drive with at least 3/16 inch of tread; fines start at $130. If the car is driven year-round in a state with real winters, either run an all-season or all-weather tire in this size or keep a second set of winter tires, often on a smaller, narrower wheel that is also less expensive.
None of our picks in this size, the Atturo AZ850, carries the 3PMSF symbol; for that, look at the all-weather and winter tires.
Vehicles that use 285/30R20
- Chevrolet Corvette C7 Z51 (2014-2019, rear)
- Chevrolet Camaro SS 1LE (2017-2024, front)
- Chevrolet Camaro ZL1 (2017-2024, 20 in front)
Other years and wheel packages of the same models came on 305/30R20 or 245/35R19 instead, so read the placard inside the driver's door before you order.
Which type of 285/30R20 tire?
All-Season Tires
Drivers in the South, West Coast and mild parts of the Midwest who want one set of tires that lasts a long time and is quiet.
Summer Tires
Sports-car and performance-sedan owners, and anyone in a warm climate who wants the best possible grip and steering.
Performance Tires
Owners of sports sedans, hot hatches and performance crossovers who want year-round tires with real handling.
Frequently asked questions
How much do 285/30R20 tires cost?
Expect $110–$135 per tire for a budget brand, $135–$329 for a mid-range tire like the Kumho Ecsta Sport S PS72, and $329–$494 for a premium tire like the Bridgestone Potenza S007A RFT. A set of four therefore starts at about $440. Add roughly $15 to $45 per tire for mounting and balancing.
What vehicles use 285/30R20 tires?
285/30R20 is original equipment on Chevrolet Corvette C7 Z51 (2014-2019, rear), Chevrolet Camaro SS 1LE (2017-2024, front) and Chevrolet Camaro ZL1 (2017-2024, 20 in front), among others. Always confirm with the sticker inside your driver's door, because trim levels and wheel packages can change the size.
What is the best 285/30R20 tire?
For most drivers our mid-range pick, the Kumho Ecsta Sport S PS72, is the sweet spot of price and tread life. If you keep the vehicle a long time or drive in heavy rain and snow, the Bridgestone Potenza S007A RFT is worth the extra. On a tight budget the Atturo AZ850 is a sound choice.
Can I replace just one or two 285/30R20 tires?
On a front- or rear-wheel-drive car, yes: replace in pairs on the same axle and put the newer pair on the rear. On all-wheel-drive vehicles most makers want all four replaced together, or a new tire shaved to match, because a difference in circumference strains the drivetrain.