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SVTPerformance's Chain of Restaurants
Road Side Pub
Why the heck are so many using ride-killing 20" wheels??
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<blockquote data-quote="DHG1078" data-source="post: 15587322" data-attributes="member: 65442"><p>Its not that easy to say. What improves handling isn't necessarily wheel diameter, but rather lower mass, especially rotating mass, short and stiff sidewall tires, and sticky compound tires. Smaller wheels and tires can theoretically have a lower mass, but not all wheels are engineered the same. A cheap set of 17's can weigh more than an expensive set of 19/20's. Having said that, even on a light weight set of 20's the majority of the mass is further from the center of the wheel than on a 17/18 which hurts performance. But again, we're talking in general terms and a poorly engineered 17 can be worse than a great set of 20's.</p><p></p><p>Then comes brakes. Bigger cars today weigh more. They need bigger brakes to compensate. Bigger brakes mean bigger wheels. We have to add a little bit of rotating mass to get better/adequate brakes on the car.</p><p></p><p>No one has gone out and done a comparison and bought a shit ton of wheels/tires of different sizes that fit one car and run laps. If you track your car a ton, you go for the smallest and lightest set you can find that fit your brakes. If you have never been on a track, find the wheels you like best and run them.</p></blockquote><p></p>
[QUOTE="DHG1078, post: 15587322, member: 65442"] Its not that easy to say. What improves handling isn't necessarily wheel diameter, but rather lower mass, especially rotating mass, short and stiff sidewall tires, and sticky compound tires. Smaller wheels and tires can theoretically have a lower mass, but not all wheels are engineered the same. A cheap set of 17's can weigh more than an expensive set of 19/20's. Having said that, even on a light weight set of 20's the majority of the mass is further from the center of the wheel than on a 17/18 which hurts performance. But again, we're talking in general terms and a poorly engineered 17 can be worse than a great set of 20's. Then comes brakes. Bigger cars today weigh more. They need bigger brakes to compensate. Bigger brakes mean bigger wheels. We have to add a little bit of rotating mass to get better/adequate brakes on the car. No one has gone out and done a comparison and bought a shit ton of wheels/tires of different sizes that fit one car and run laps. If you track your car a ton, you go for the smallest and lightest set you can find that fit your brakes. If you have never been on a track, find the wheels you like best and run them. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Why the heck are so many using ride-killing 20" wheels??
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