Brian wrote:It's a good debate. On the one hand, the RP-F1 in 17x9 is just under 16 pounds...amazingly light for that size and that means you minimize unsprung and rotational weight. It's a great choice. And on the other hand, the 18x9.5 RP-F1 gives you a little sharper initial turn-in response from your tire choice...and room for big brakes if that's in your later plans. Assuming performance is the goal, and you don't plan track work or big brakes, then I prefer to keep the weight as low as possible for the torque challenged RX8...and suggest the 17x9 with a high performance tire will make a happy driver.
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