so im doing some research into a new set of wheels and tyres for my car which is a 2001 CE Lancer sedan... not an evo. when i got the car it already had the full widebody evo5/6 kit on it and these 17's which are pretty yuck and dont do the car or the kit any justice..
so i have lined up a set of Konig 18's that look great and for cheap from a mate but i want to keep it legal so this is what ive found from NSW RTA...
RTA: Wheels & Tyres
1. wheel track must not be increased by more than 25mm beyond the maximum specified by the vehicle manufacturer for that vehicle.
2. Where non original axle or suspension components are fitted, the offset of the wheel in relation to the axle or stub axle assembly used shall not be increased by more than 12.5mm each side of the vehicle based on the specifications of the axle components used.
Minor Wheel Changes:
3. Wheels up to 26mm wider than the largest optional wheel recommended by the vehicle manufacturer for the vehicle can be fitted without the need to notify the RTA.
4. The outside diameter of the wheel and tyre combination must be no more than 15mm over the largest diameter wheel and tyre combination specified for the vehicle.
Front wheel drive vehicles
Except where the original manufacturer provides to the contrary, front wheel widths shall be no more than 26mm greater than the widest optional wheel offered by the vehicle manufacturer. This requirement also applies to fourwheel drive vehicles with constant front wheel drive.
now according to this 215/35R18 size wheels & tyres are ok because they are within the overall diameter increase which is 15mm max. But the section width increase is 30mm, 4mm over the max increase which is 26mm... is 4mm really gonna be an issue? that is my only concern... if it will be a problem who would i have to take the car in to have it assessed?
Factory - 595.88mm (185/65R14) no bigger than 610.88mm (max 15mm increase) in overall diameter.
Current - 625.09mm (215/45R17) not ok.
Konig - 607.56mm (215/35R18) ok