Lots of reasons to switch to 15". While I like both styles aesthetically...imo, the benefits of a smaller wheel with a higher aspect tire outweigh the looks of a "rubber band" tire.
Performance benefits from the smaller size are immediately noticeable even with a plain and relatively heavy steel wheel when compared to oem but are much more significant when using a light wheel.
The extra "padding" reduces the risk of bending or cracking your wheel when driving over road imperfections while also improving comfort. Personally I like this. Granted I didn't expect it to ride like a limo when I bought it (and it doesn't) but the extra air cushioning definitely smoothes it out. You still feel the bumps and imperfections, it just reduces or eliminates the jarring effect. Side benefit is that other friends and family unaccustomed to sport suspensions are much more comfortable and likely to ride with you afterwards and all WITH a performance boost! But then again I'm kind of biased toward a "sport touring" suspension. A sporty yet comfortable feel.
Possible other benefits but I'll stop there. After all of that, somehow the high aspect seems to look so much better to me now, lol.
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