285/30 R21 Summer Tires – Used

The 285/30 R21 size is an extremely sporty ultra-high-performance size , predominantly used on luxury performance sedans , sports coupes , wide rear-wheel drive vehicles , AMG/M/RS models , and high-performance AWD vehicles .
With a width of 285 mm and a very low profile of 30, this tire size offers:

• maximum lateral guidance

• extremely direct steering precision

• shortest braking distances

• excellent high-speed stability

• sporty and agile handling

It is ideal for vehicles with:

• very powerful engines ,

• wide 21" performance rims ,

• larger braking systems ,

• sport-tuned multi-link axles ,

• Quattro / 4Matic / xDrive all-wheel drive technology ,

• Rear-wheel drive with a wide rear axle .

Since this dimension supports highly dynamic driving situations, used summer tires must be checked extremely carefully for carcass integrity , material aging , concentricity and high-speed suitability .

✔ Vehicle types that commonly use 285/30 R21

Luxury & Performance Sedans

• Mercedes S-Class AMG

• BMW 7 Series & 8 Series Gran Coupe (Performance Packages)

• Audi A8 / S8

Sports coupes & Gran Turismo models

• Porsche Panamera (variants)

• BMW M8 / M850i

• Mercedes AMG GT 4-door

Performance AWD vehicles

• Audi RS7 / RS6 (21" setups)

• AMG 63 4Matic models

Rear-wheel drive vehicles (wide rear axle)

• High-performance coupes with 21” performance wheels

🔧 Technical testing criteria for used 285/30 R21 summer tires

1. Tread depth & wear pattern

The following will be checked:

• sufficient remaining tread depth

• even wear

• no thermal tears or shoulder detachments

2. DOT analysis & material condition

Relevant for ultra-high performance:

• Year of production

• Thermal aging due to high torques

• UV exposure

• Rubber elasticity

3. Carcass & Structure Inspection

Extremely important for high speed:

• no cuts, tears, or dents

• no belt or carcass fractures

• Reinforced sidewall compounds must be intact

4. Runout & Vibration Test

Crucial for:

• precise steering responses

• smooth driving behavior

• Performance on the motorway & race track

5. Load Capacity & Speed ​​Index (LI/SI)

Required for:

• very heavy luxury vehicles

• High-performance vehicles > 500 hp

• All-wheel drive models with high torque

6. Air tightness test

Each tire is checked for pressure loss.

🛠 Tyre44 testing procedure for used 285/30 R21 summer tires

All tires are checked for:

• digital tread depth measurement

• DOT & Material Analysis

• Carcass and structural integrity

• Runout measurement & vibration testing

• Airtightness

• OEM-compliant rolling circumference values

→ Only technically flawless tires are included in the Tyre44 product range.

🧊 Summer tire offer in 285/30 R21 (used) at Tyre44

We offer:

• tested used ultra-performance summer tires

• various DOT and tread depth options

• sport-optimized profiles

• XL/Extra Load versions

• inexpensive alternatives to new tires

🔍 Easily select suitable used summer tires

With the Tyre44 vehicle filter
(Manufacturer → Model series → Model name)
You will receive tires that:

• are fully compatible with 285/30 R21

• Load capacity and speed indices are met

• Adhere exactly to OEM rolling circumference

• Ideally suited for sports coupes, luxury sedans, performance & AWD models

→ No more bad purchases.

⭐ Why Tyre44?

• Strictly inspected used summer tires in size 285/30 R21

• documented DOT and tread depth information

• fast delivery throughout Europe

• Premium quality for high-performance vehicles

• maximum stability, precision & driving safety

Order your certified used summer tires in size 285/30 R21 now – extremely sporty, precise & performance-oriented! 🚀