🚗 Porsche Boxster Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche Boxster is a mid-engine convertible sports car designed for balanced handling, open-top driving, and everyday usability. Across generations — 986, 987, 981, and 718 Boxster — tyre choice plays a major role in:
Need tyres for your Porsche Boxster 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
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 |
|---|---|---|---|
| 205/55R16 | Daily driving, comfort and value options | View 205/55R16 tyre options | Check fitted availability |
| 205/50R17 | Daily driving, comfort and value options | View 205/50R17 tyre options | Check fitted availability |
| 225/50R16 | Daily driving, comfort and value options | View 225/50R16 tyre options | Check fitted availability |
| 255/40R17 | Daily driving, comfort and value options | View 255/40R17 tyre options | Check fitted availability |
| 205/55R17 | Daily driving, comfort and value options | View 205/55R17 tyre options | Check fitted availability |
| 235/40R18 | Performance, comfort and upgrade options | View 235/40R18 tyre options | Check fitted availability |
| Wheel alignment | Recommended after tyre or wheel changes | Wheel alignment Adelaide | Call Magill |
✔ Steering precision
✔ Ride comfort
✔ Handling balance
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (Boxster – 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
-
📌 Torque spec varies depending on generation
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche Boxster 986 (1997–2004)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 16x6 / 17x7 | ET55 |
| Rear | 16x7 / 17x8.5 | ET40–50 |
🔹 Porsche Boxster 987 (2005–2012)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 17x6.5 / 18x8 | ET55–57 |
| Rear | 17x8 / 18x9 | ET43–50 |
🔹 Porsche Boxster 981 (2013–2016)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 18x8 / 19x8.5 | ET57 |
| Rear | 18x9 / 19x9.5 | ET45 |
🔹 Porsche 718 Boxster (2017–Present)
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 18x8 / 19x8.5 / 20x8.5 | ET57 |
| Rear | 18x9 / 19x9.5 / 20x10.5 | ET45 |
📌 All Boxster models use staggered wheel setup
📏 Factory Tyre Sizes
🔹 Boxster 986
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Front: 205/55R16 / 205/50R17
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Rear: 225/50R16 / 255/40R17
🔹 Boxster 987
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Front: 205/55R17 / 235/40R18
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Rear: 235/50R17 / 265/40R18
🔹 Boxster 981
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Front: 235/45R18 / 235/40R19
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Rear: 265/45R18 / 265/40R19
🔹 718 Boxster
18 Inch:
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235/45R18 (Front)
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265/45R18 (Rear)
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
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Michelin Pilot Sport 4 / 4S (N-rated)
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Continental SportContact 7
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Pirelli P Zero
✔ Excellent grip
✔ Comfortable ride
✔ Ideal for daily driving
🏁 Performance Driving
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Michelin Pilot Sport 4S
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Continental SportContact 7
✔ Improved handling
✔ Better cornering stability
🏁 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 noise
✔ Better ride quality
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
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Maintain factory tyre sizes
✔ Best handling balance
✔ 19” / 20” Upgrade
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235/35R20 + 265/35R20
✔ Improved steering response
✔ Sportier look
✔ Comfort Setup
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Touring-performance tyres
✔ Reduced road noise
✔ Better daily usability
⚠️ Critical Fitment Notes
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Boxster is mid-engine → sensitive to tyre balance
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Staggered setup = NO front-to-rear rotation
✔ Always use matched tyres
❌ Incorrect tyres may:
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Affect handling
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Reduce grip
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Increase wear
✔ Recommend N-rated tyres
🛠️ Torque & Installation Guide
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986 / 987: 130 Nm
-
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 sports cars:
✔ Boxster 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 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