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- 2003.5 Mazda Protege' MazdaSpeed
Thanks for your graph.ChopstickHero said:
Rim Diameter: The diameter of the wheel's bead seat where the tyre sits, NOT the overall diameter of the wheel.
Rim Width:The width of the wheel, measured from bead seat to bead seat
Off Set: The positive or negative distance from the wheel's centre line to the mounting surface of the wheel.
The 215/45/17 stock sized MSP tire can fit over a 17x7.5 rim fine. you get a slight stretch in the rubber, but it's fine.
The thing that i do not understand is that if our stock offset is 55, will the 42 offset work?
There will be a difference of -13 meaning that the enkei will stay closer to the car?
Is that correct? Will the tire be to inward? Will it look funny?
Thanks
Positive offset is how most factory wheels are designed. The wheel center is moves the wheel closer to the vehicle, therefore moving the tire closer to the vehicle, helping to tuck it under the fenderwell. This means the wheel rotates on its axis.
Negative offset is how most aftermarket wheels are designed. They move the center of the wheel away from the vehicle. Therefore, moving the tires away from the vehicle, and increasing the turning radius. Rather that spinning on its axis, it swings on its axis. There are several inherent flaws with this, while they may be unavoidable. Increasing the offset puts more leverage on the lugs, which means you can break them easier, but it also increases the stance of your vehicle to help keep it more stable. The swinging affect means more lift is needed to avoid rubbing.