Approved Tires ALPINE A390 GT

1 variant · 1 configuration

Officially FEDRO-approved tire sizes for all ALPINE A390 GT variants.

401.2 CVélectrique

245/45 R20 103V

Standard configuration

245/45 R20 103V

Width245 mm

Aspect ratio45%

Wheel8 x 20" ET 57

Offset (ET)57 mm

875 kg max240 km/h

Option 1

245/40 R21 100Y

Width245 mm

Aspect ratio40%

Wheel8.5 x 21" ET 57

Offset (ET)57 mm

800 kg max300 km/h

Full spec sheet

ALPINE A390 GT

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Approved tires: official Swiss data

Every vehicle registered in Switzerland has a list of tire sizes approved by the Federal Roads Office (FEDRO). This data comes from type approvals (TARGA) and determines which tire sizes you can legally mount. Our tool displays standard and optional configurations with wheels, offset, load and speed ratings.

Why respect the approval?

Mounting non-approved tires can lead to inspection failure, fines, or even insurance cancellation in case of an accident. Always check that your tires match the approved sizes for your vehicle.