I went to a lightweight enkei rpf1 17x9, with r compound 235s and I've got to tell you I didn't lose straight line speed or any cornering ability. Sonnot sure what youre referencing here. Maybe just the bigger diameter wheel?Nothing, they are just wide. It depends on your goals - looks or performance. In most cases, going wider worsens handling and straightline acceleration, and also increases overall cost. For ripping mountain roads, you don't need a wider wheel - tire compound and air pressure matters more. Many people go wide, i'm not sure why. It usually just adds weight, and does not typically increase contact patch.. (i.e., you go slower). For me, straightline acceleration > looks or "potential" cornering gains by going wider. The only actual situation to go wider is if you have the 500hp veloster.
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