BMW M850i xDrive Tyre Size Guide
Wheel Specs, PCD, Centre Bore & Torque Settings
The BMW M850i xDrive is a high-performance grand tourer powered by a twin-turbo V8, featuring:
Need tyres for your BMW M850i xDrive in Adelaide?
Autosport Tyre World Magill can help confirm the correct tyre size, load rating, wheel fitment and alignment needs before you order.
Call Magill: 0452 641 023 Get fitted tyre quote View tyres Book wheel alignment
Tyre options and fitment help for BMW M850i xDrive
Use these links to check available tyre options by size. If you are unsure which size suits your exact model, send us your tyre placard photo before ordering.
| Size / service | Best use | Shop or search | Fitment check |
|---|---|---|---|
| 245/35R20 | Performance, comfort and upgrade options | View 245/35R20 tyre options | Check fitted availability |
| 275/30R20 | 4WD, touring, AT/HT tyre options | View 275/30R20 tyre options | Check fitted availability |
| 255/35R20 | Performance, comfort and upgrade options | View 255/35R20 tyre options | Check fitted availability |
| 285/30R20 | 4WD, touring, AT/HT tyre options | View 285/30R20 tyre options | Check fitted availability |
| 265/35R20 | 4WD, touring, AT/HT tyre options | View 265/35R20 tyre options | Check fitted availability |
| 295/30R20 | 4WD, touring, AT/HT tyre options | View 295/30R20 tyre options | Check fitted availability |
| Wheel alignment | Recommended after tyre or wheel changes | Wheel alignment Adelaide | Call Magill |
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xDrive all-wheel-drive system
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Adaptive suspension
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High-speed touring capability
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Coupe, Convertible and Gran Coupe variants
This makes tyre selection critical for:
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Maximum traction
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High-speed stability
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Cornering grip
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Ride comfort
Autosport Tyreworld specialises in BMW M Performance vehicles and premium tyre fitments.
BMW M850i xDrive Wheel Specifications
G14 / G15 / G16 (2019–Present)
| Specification | Value |
|---|---|
| Bolt Pattern (PCD) | 5x112 |
| Centre Bore | 66.6 mm |
| Wheel Bolt Size | M14 x 1.25 |
| Wheel Torque | 140 Nm |
BMW M850i xDrive Factory Tyre Sizes
Standard 20” Setup (Most Common)
| Position | Tyre Size | Rim Size |
|---|---|---|
| Front | 245/35R20 | 20x8 |
| Rear | 275/30R20 | 20x9 |
Performance Staggered Setup
| Position | Tyre Size |
|---|---|
| Front | 255/35R20 |
| Rear | 285/30R20 |
Optional Larger Setup
| Position | Tyre Size |
|---|---|
| Front | 265/35R20 |
| Rear | 295/30R20 |
Important: xDrive AWD Requirements
The BMW M850i xDrive requires:
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Matching tyre brands and models
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Consistent rolling diameter
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Even tyre wear across all wheels
Incorrect setup may cause:
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Transfer case damage
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Drivetrain stress
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Reduced performance
Runflat vs Non-Runflat Tyres
Factory setup often includes runflat tyres.
Runflat tyres:
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Can drive after puncture
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No spare required
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Firmer ride
Non-runflat tyres:
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Better comfort
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Lower noise
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Improved grip
Autosport Tyreworld recommends non-runflat performance tyres for better driving experience.
Popular Tyre Upgrade Options
Street Performance Setup
| Position | Tyre Size |
|---|---|
| Front | 255/35R20 |
| Rear | 285/30R20 |
Aggressive Setup
| Position | Tyre Size |
|---|---|
| Front | 265/35R20 |
| Rear | 295/30R20 |
Track-Focused Setup
| Position | Tyre Size |
|---|---|
| Front | 275/35R20 |
| Rear | 305/30R20 |
Before upgrading:
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Maintain rolling diameter
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Ensure wheel width compatibility
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Check clearance
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Match tyre brands
Recommended Tyres for BMW M850i xDrive
Performance Daily Driving
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Michelin Pilot Sport 5
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Continental MaxContact MC7
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Bridgestone Potenza Sport
High Performance
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Continental SportContact 7
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Michelin Pilot Sport 4 SUV
Track & Maximum Grip
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Michelin Pilot Sport Cup 2
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Yokohama AD09
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Pirelli P Zero Trofeo R
BMW M850i xDrive Wheel Torque Specification
Recommended torque:
140 Nm
Installation tips:
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Torque when cold
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Tighten in star pattern
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Recheck after 50–100 km
Need Tyres for Your BMW M850i xDrive?
Visit Autosport Tyreworld:
Magill
647 Magill Road, Magill SA 5072
0452 641 023
Wingfield
411 Grand Junction Road, Wingfield SA 5013
0433 645 411
Clarence Gardens
911 South Road, Clarence Gardens SA 5039
0420 299 911
We specialise in BMW performance vehicles, AWD systems and premium tyre solutions.
Need tyres or wheel alignment for your BMW M850i xDrive in Adelaide?
Send us your tyre size, vehicle model or tyre placard photo and the team at Autosport Tyre World Magill will confirm suitable options, availability and fitted advice.
Autosport Tyre World Magill: 647 Magill Road, Magill SA 5072. Phone 0452 641 023.
Call Magill Get fitted tyre quote View tyres Wheel alignment Adelaide