🏁 Porsche Boxster S Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche Boxster S is a higher-performance version of the Boxster, offering more power, upgraded brakes, and sharper handling. Across all generations — 986, 987, 981, and 718 Boxster S — tyre selection is critical for:
Need tyres for your Porsche Boxster S 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 Porsche Boxster S
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 |
|---|---|---|---|
| 205/50R17 | Daily driving, comfort and value options | View 205/50R17 tyre options | Check fitted availability |
| 225/40R18 | Performance, comfort and upgrade options | View 225/40R18 tyre options | Check fitted availability |
| 255/40R17 | Daily driving, comfort and value options | View 255/40R17 tyre options | Check fitted availability |
| 265/35R18 | 4WD, touring, AT/HT tyre options | View 265/35R18 tyre options | Check fitted availability |
| 235/40R18 | Performance, comfort and upgrade options | View 235/40R18 tyre options | Check fitted availability |
| 265/40R18 | 4WD, touring, AT/HT tyre options | View 265/40R18 tyre options | Check fitted availability |
| Wheel alignment | Recommended after tyre or wheel changes | Wheel alignment Adelaide | Call Magill |
✔ Grip and cornering performance
✔ Steering precision
✔ Ride comfort
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (Boxster S – All Generations)
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Bolt Pattern (PCD): 5×130
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Centre Bore: 71.6 mm
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Wheel Bolt Thread: M14 × 1.5
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Wheel Nut Torque:
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986 / 987: 130 Nm
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981 / 718: 160 Nm
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🛞 Factory Wheel Sizes & Offsets
🔹 Porsche Boxster S 986 (1999–2004)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 17x7 / 18x8 | ET55 |
| Rear | 17x8.5 / 18x9 | ET43–50 |
🔹 Porsche Boxster S 987 (2005–2012)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 18x8 | ET57 |
| Rear | 18x9 | ET43 |
🔹 Porsche Boxster S 981 (2013–2016)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x8.5 | ET57 |
| Rear | 19x9.5 | ET45 |
🔹 Porsche 718 Boxster S (2017–Present)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x8.5 / 20x8.5 | ET57 |
| Rear | 19x9.5 / 20x10.5 | ET45 |
📌 All Boxster S models use staggered wheel setup
📏 Factory Tyre Sizes
🔹 Boxster S 986
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Front: 205/50R17 / 225/40R18
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Rear: 255/40R17 / 265/35R18
🔹 Boxster S 987
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Front: 235/40R18
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Rear: 265/40R18
🔹 Boxster S 981
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Front: 235/40R19
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Rear: 265/40R19
🔹 718 Boxster S
19 Inch:
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235/40R19 (Front)
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265/40R19 (Rear)
20 Inch:
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235/35R20 (Front)
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265/35R20 (Rear)
⚙️ Recommended Tyres (Australia)
🔥 Best Daily Performance (Recommended)
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Michelin Pilot Sport 4S (N-rated)
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Continental SportContact 7
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Pirelli P Zero (PZ4 Porsche spec)
✔ Excellent grip
✔ Balanced comfort
✔ Ideal for daily driving
🏁 Performance Driving
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Michelin Pilot Sport 4S
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Continental SportContact 7
✔ Strong cornering performance
✔ Precise steering feel
🏁 Track Setup (Optional)
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Michelin Pilot Sport Cup 2
✔ Maximum grip
✔ Track-ready performance
🔇 Comfort Option
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Continental MaxContact MC7
✔ Lower road noise
✔ Improved comfort
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
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Maintain factory tyre sizes
✔ Best handling balance
✔ 20” Upgrade (981 / 718)
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235/35R20 + 265/35R20
✔ Sharper handling
✔ Improved aesthetics
✔ Comfort Setup
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Touring-performance tyres
✔ Better ride quality
✔ Reduced noise
⚠️ Critical Fitment Notes
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Boxster S is mid-engine → sensitive to tyre balance
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Staggered setup = NO front-to-rear rotation
✔ Always use matched tyre brands and patterns
❌ Incorrect tyres may:
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Affect handling
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Reduce grip
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Increase uneven wear
✔ Recommend N-rated tyres
🛠️ Torque & Installation Guide
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986 / 987: 130 Nm
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981 / 718: 160 Nm
✔ Re-torque after 50–100 km
✔ Always use torque wrench
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in Porsche performance vehicles:
✔ Boxster S fitment expertise
✔ Correct staggered setup advice
✔ Premium tyre brands available
✔ Precision balancing & alignment
📍 Visit Our Stores
AUTOSPORT TYREWORLD
📍 647 Magill Road, Magill SA 5072
📞 0452 641 023
📍 411 Grand Junction Road, Wingfield SA 5013
📞 0433 645 411
📍 911 South Road, Clarence Gardens SA 5039
📞 0420 299 911
Need tyres or wheel alignment for your Porsche Boxster S 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