why plus size wheels/tires may not be the best thing AcuraLegend Org The… — Volkswagen Gol G1

11 мая 2015 | Author: | Комментарии к записи why plus size wheels/tires may not be the best thing AcuraLegend Org The… — Volkswagen Gol G1 отключены
Volkswagen Gol G1

Car and Driver has an article in next issue on the effects of bigger on performance, economy, handling, ect and the are as expected:


The aesthetic of larger wheels and tires is but what about the alleged benefits? In general, larger are heavier, and additional weight performance. To examine the effects of larger wheels and tires, known as “plus-sizing,” we tested wheel-and-tire combinations—ranging from 15 to 19 a 2010 Volkswagen Golf and got a sense of what is gained and in the process.

The plus-size concept works like this: As the gets larger in diameter, the of the tire’s sidewall must to maintain the tire’s overall Keeping the overall tire roughly the same is crucial to the gearing the same and the speedometer as well as for making sure the and tires fit within the fenders. But wheels and tires are often only in enlarged widths as For more information on plus-sizing and on what will and won’t fit car, call the folks at Rack (800-981-3782) or visit

Our test employed nearly Goodyear Eagle GT ultra-high-performance tires in all five sizes, to manufacturer-recommended pressures. We say that the were nearly the same the 15-, 16-, and 17-inchers a lower speed rating (V, or a top up to 149 mph) than the 18- and 19-inch W-rating (up to 168 mph). This, was as close as we could get to testing the tire in every size. We the stock steel wheels for the test and went to the aftermarket for the wheels, as most owners do. The aftermarket wheel we chose was a ASA GT1, which is available in 16- to sizes on the Golf. It’s from the test that as and tires grow in size, also grow in weight. how the test shook out:

What’s immediately apparent the results is that as the wheel-and-tire get larger and heavier, acceleration and economy suffer. Neither is a surprise, but we measured a 10-percent in fuel economy and a four-percent in 0-to-60-mph acceleration from the 15s to the which is worth considering you be thinking about “going Increasing wheel diameter and in turn, requires wider with shorter and stiffer which we found will skidpad grip, but as our test there is a limit to this The 19-inch package came the widest tires (235/35R-19) to the widest wheels (8.5 but this setup had less around the skidpad than the 225/40R-18s on 8.0-inch-wide wheels. We the folks at Goodyear why that be, and they postulated that the width may have given the tire more grip, would increase body and could therefore decrease the on the inside tire enough to 0.01 g on the skidpad.

Volkswagen Gol G1

Surprisingly, the 225/40R-18s showed a big advantage compared with the (0.89 g versus 0.85 g). We the difference is due to the grippier compound wear rating) of the W-rated Goodyear does offer a GT in the 225/45R-17 size, which is we intended to use, but Goodyear us the V-rated version for our test.

Subjectively, both the 17-inch and wheels and tires were in the spot of grip, braking ride comfort, and steering Moving from 17-inchers to 18s degrades ride quality, and the grip is welcome. We’d that a W-rated Eagle GT in the size would come to matching the grip of the W-rated 18, but we say for certain without testing. with V-rated rubber, the of the 17s felt *similar to that of the But since the 18-inch setup only $112 more the 17-inch package, we’d opt for the 18s if we lived in a region with roads and looks were a

We do know that the heavy, setup suffered from the impact harshness and seemed to tax the the most. In contrast, the two smallest combos showed a propensity for understeer on the skidpad but provided a controlled and supple ride. And it didn’t register on the dBA-meter, the 15- and arrangements had a more pleasant quality than the larger

The 19-inch wheels definitely the coolest. But the 17- and 18-inch setups a better compromise of grip, price, and ride harshness, so not surprised VW uses 17- and 18-inch on its hot Golf, the GTI. If it’s you’re after, stick the smaller, lighter wheels and And remember, unless you believe it is to look good than to good, take our advice and away from extremely sidewalls and massively heavy

Volkswagen Gol G1
Volkswagen Gol G1
Volkswagen Gol G1
Volkswagen Gol G1

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