R35 GT-R Wheel Offset Guide: 20x10 +30 and 20x12 +20
Width and offset in plain English
A 20x10 +30 front wheel is 20 inches in diameter, 10 inches wide and has +30 mm offset. The 20x12 +20 rear is two inches wider and has a lower positive offset. Width and offset together influence inner and outer position; comparing offset alone is not enough.
Both wheels use a 5x114.3 stud pattern, but stud pattern does not guarantee fitment. Centre bore, hub location, wheel-nut seat, brake-caliper clearance, load suitability and available thread engagement also need verification.
Why a physical check is valuable
R35s can vary through suspension changes, brake changes and previous modifications. A shop can inspect clearance, mount and balance the exact tyre, then check the assembly on the vehicle. This photographed car confirms one working workshop example; it should be used as a starting point for verification rather than a universal chart.
Confirmed workshop specification
| Position | Wheel | Tyre |
|---|---|---|
| Front | RAYS Volk Racing TE37, 20x10 +30, 5x114.3 | Michelin Pilot Sport 4 S, 285/35R20 |
| Rear | RAYS Volk Racing TE37, 20x12 +20, 5x114.3 | Michelin Pilot Sport 4 S, 345/30R20 |
Product and service links
- RAYS TE37 Ultra M-Spec 20x10 / 20x12 package
- Michelin PS4S 285/35R20 front tyre
- Michelin PS4S 345/30R20 rear tyre
- Four-wheel alignment in Adelaide
- RAYS manufacturer information
- Michelin Pilot Sport 4 S manufacturer information
Availability, price and fitting inclusions can change. Confirm the exact products, quantity and vehicle compatibility with the store before purchasing.
Quick answer
What do 20x10 +30 and 20x12 +20 mean?
On this photographed Nissan GT-R R35, the confirmed package was 20x10 +30 front and 20x12 +20 rear RAYS TE37 wheels, with 285/35R20 front and 345/30R20 rear Michelin PS4S tyres. Compatibility should be verified for each individual vehicle.
Frequently asked questions
Is this package guaranteed for every R35 GT-R?
No. Year, suspension, brakes, ride height and modifications can change fitment. Check the individual car.
Can these staggered tyres be rotated front-to-rear?
No, because the front and rear sizes differ. Other rotation options depend on tyre direction and wheel configuration.
Why check alignment with new tyres?
Incorrect toe or other geometry issues can cause uneven wear and poor steering behaviour. Alignment cannot repair worn or damaged parts.
Where is Autosport Tyre World Magill?
Autosport Tyre World Magill is at 647 Magill Road, Magill SA 5072. Phone 0452 641 023 for product availability, fitment checks and bookings.