Nankang Econex NA1 vs Double Coin DC99
In the 2 independent tests that ran both tires, the Nankang Econex NA1 finished ahead 2 times and the DC99 not once. The Econex NA1 was stronger in dry and wet, the DC99 in comfort and value.
Performance profile
12 measurements from the 2 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Econex NA1
DC99
Point at or tap any spoke for both tires' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 118 ft stop against 112 ft is 95%; each spoke averages the shared tests that recorded it. The scale stops at 60%: a point further in sits on the hub's edge, hollow.
Where each scores higher
Econex NA1
DC99
Point at or tap any spoke for both tires' figures.
Category scores are percentiles among tires of the same season and class: 90 means this tire out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Every measurement, side by side
Averages of the figures both tires posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Wins count the tests in which each tire did better.
| Measurement | Econex NA1 | Gap | DC99 | Wins |
|---|---|---|---|---|
| Dry Econex NA1 ahead | ||||
| Dry Braking ft | 126 | 3% | 130 | 2-0 |
| Dry Handling s | 52.23 | 2.2% | 53.39 | 2-0 |
| Subj. Dry Handling pts | scored | 150% | scored | 2-0 |
| Wet Econex NA1 ahead | ||||
| Wet Braking ft | 130 | 14% | 151 | 2-0 |
| Wet Handling s | 89.36 | 7.2% | 96.27 | 2-0 |
| Subj. Wet Handling pts | scored | 40% | scored | 2-0 |
| Wet Circle s | 11.89 | 7.3% | 12.82 | 2-0 |
| Straight Aqua mph | 46.1 | 14.8% | 40.1 | 2-0 |
| Curved Aquaplaning ft/s² | 10.6 | 40.8% | 7.5 | 2-0 |
| Comfort DC99 ahead | ||||
| Subj. Comfort pts | scored | = | scored | 0-0 |
| Noise dB | 71.9 | 1.7 dB | 70.2 | 0-2 |
| Value DC99 ahead | ||||
| Rolling Resistance kg / t | 9.18 | 6% | 8.63 | 0-2 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tires shared.
Head to head in 2 tests in 2023
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Econex NA1 | Field | DC99 |
|---|---|---|---|
| Are Budget Tires Finally Good Enough? 8 Cheap Tires VS 1 Premium Tire | P3 of 9 | P9 of 9 | |
| Tire Reviews Best Summer Touring Tires | P12 of 13 | P13 of 13 |
Econex NA1 vs DC99: your questions
Is the Nankang Econex NA1 or the Double Coin DC99 the better tire?
In the 2 independent tests that ran both tires, the Nankang Econex NA1 finished ahead 2 times and the DC99 not once. On the Tire Reviews Score, which weighs every test and review we hold, the Econex NA1 scores 4.4 and the DC99 2.1 out of 10.
Which is better in the wet, the Econex NA1 or the DC99?
The Econex NA1 led 12 of the 12 wet measurements the shared tests recorded. On average it stopped 14% shorter in the wet across 2 tests.
Which is better in the dry?
The Econex NA1 led 6 of the 6 dry measurements the shared tests recorded. On average it stopped 3% shorter in the dry across 2 tests.
Which lasts longer and costs less to run?
The DC99 had 6% lower rolling resistance (2 tests). Owners rate wear 4.7/10 for the Econex NA1 and 3.5/10 for the DC99.
Which is quieter and more comfortable?
The DC99 was 1.7 dB quieter (2 tests). Owners rate comfort 5.3/10 for the Econex NA1 and 2/10 for the DC99.
What do owners say?
Owners rate the Econex NA1 47% from 7 reviews and the DC99 15% from 2.
Which is more expensive?
In the 2 tests that listed prices, the Econex NA1 was the dearer tire in 2 of them, by 9% on average. Prices are the test's own at the time, in its own market.
More comparisons with these tires
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Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.