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Test Charts / ADAC

2025 ADAC Summer Tyre Test

Compare each discipline in the tested size. See the measured result, position and gap to the best tyre, then read the verdict for the trade-offs behind the finishing order.

Tested size
225/40 R18
Tyres tested
18
Disciplines
10

Read the measurements, not just the rank

Lower is better for braking distances and lap times; higher is better for subjective scores and aquaplaning speed. Bars start at zero. Read the gap alongside the position: adjacent tyres can be separated by very different margins.

Positions and gaps always refer to the full test field within each group. Selecting tyres does not recalculate rankings or change the best-in-test benchmark.

Dry

1

Dry Braking

Dry braking in meters (100 - 0 km/h)

Lower is better ↓
Dry Braking
Position / TyreResultGap to bestResidual speed
34.8 m Best 0 km/h
34.8 m Best 0 km/h
34.9 m +0.10 m 7 km/h
35.2 m +0.40 m 14 km/h
35.4 m +0.60 m 17 km/h
35.5 m +0.70 m 18 km/h
35.5 m +0.70 m 18 km/h
35.8 m +1.00 m 22 km/h
35.9 m +1.10 m 23 km/h
36.5 m +1.70 m 28 km/h
36.6 m +1.80 m 29 km/h
37.2 m +2.40 m 33 km/h
37.3 m +2.50 m 34 km/h
37.5 m +2.70 m 35 km/h
37.8 m +3.00 m 37 km/h
38.4 m +3.60 m 40 km/h
39.4 m +4.60 m 44 km/h
39.5 m +4.70 m 45 km/h

The difference between best and worst was 13.5% (4.7 m ≈ 1 Car Lengths). From 130 km/h, the Double Coin DC 100 would still be travelling at 45 km/h when the Kumho Ecsta PS71 had stopped.

Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.

Wet

4

Wet Braking

Wet braking in meters (80 - 0 km/h)

Lower is better ↓
Wet Braking
Position / TyreResultGap to bestResidual speed
28.4 m Best 0 km/h
28.8 m +0.40 m 15 km/h
29.2 m +0.80 m 22 km/h
29.5 m +1.10 m 25 km/h
30.2 m +1.80 m 32 km/h
30.5 m +2.10 m 34 km/h
30.9 m +2.50 m 37 km/h
30.9 m +2.50 m 37 km/h
31 m +2.60 m 38 km/h
31 m +2.60 m 38 km/h
31 m +2.60 m 38 km/h
31.2 m +2.80 m 39 km/h
31.5 m +3.10 m 41 km/h
31.5 m +3.10 m 41 km/h
32.3 m +3.90 m 45 km/h
33.3 m +4.90 m 50 km/h
34.6 m +6.20 m 55 km/h
45.1 m +16.70 m 79 km/h

The difference between best and worst was 58.8% (16.7 m ≈ 3.7 Car Lengths). From 130 km/h, the Double Coin DC 100 would still be travelling at 79 km/h when the Continental SportContact 7 had stopped.

Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.

Wet Braking - Concrete

Wet braking on Concrete in meters (80 - 0 km/h)

Lower is better ↓
Wet Braking - Concrete
Position / TyreResultGap to bestResidual speed
34.2 m Best 0 km/h
34.6 m +0.40 m 14 km/h
35.3 m +1.10 m 23 km/h
35.8 m +1.60 m 27 km/h
36 m +1.80 m 29 km/h
37.5 m +3.30 m 39 km/h
37.7 m +3.50 m 40 km/h
37.7 m +3.50 m 40 km/h
37.8 m +3.60 m 40 km/h
38 m +3.80 m 41 km/h
38.1 m +3.90 m 42 km/h
38.4 m +4.20 m 43 km/h
38.5 m +4.30 m 43 km/h
39 m +4.80 m 46 km/h
40.9 m +6.70 m 53 km/h
42 m +7.80 m 56 km/h
44.4 m +10.20 m 62 km/h
55.2 m +21.00 m 80 km/h

The difference between best and worst was 61.4% (21 m ≈ 4.7 Car Lengths). From 130 km/h, the Double Coin DC 100 would still be travelling at 80 km/h when the Continental SportContact 7 had stopped.

Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.

Straight Aqua

Float Speed in Km/H

Higher is better ↑
Straight Aqua
Position / TyreResultGap to best
83.7 km/h Best
82.6 km/h -1.10 km/h
81.2 km/h -2.50 km/h
79.9 km/h -3.80 km/h
79.6 km/h -4.10 km/h
79.4 km/h -4.30 km/h
79.1 km/h -4.60 km/h
79.1 km/h -4.60 km/h
78.9 km/h -4.80 km/h
78.7 km/h -5.00 km/h
78.3 km/h -5.40 km/h
78 km/h -5.70 km/h
77.5 km/h -6.20 km/h
77.1 km/h -6.60 km/h
76 km/h -7.70 km/h
75.9 km/h -7.80 km/h
73.2 km/h -10.50 km/h
69.3 km/h -14.40 km/h

The difference between best and worst was 17.2% (14.4 Km/H).

Curved Aquaplaning

Remaining lateral acceleration

Higher is better ↑
Curved Aquaplaning
Position / TyreResultGap to best
3.5 m/sec2 Best
3.4 m/sec2 -0.10 m/sec2
3.2 m/sec2 -0.30 m/sec2
3.1 m/sec2 -0.40 m/sec2
3.1 m/sec2 -0.40 m/sec2
3 m/sec2 -0.50 m/sec2
3 m/sec2 -0.50 m/sec2
3 m/sec2 -0.50 m/sec2
3 m/sec2 -0.50 m/sec2
3 m/sec2 -0.50 m/sec2
3 m/sec2 -0.50 m/sec2
2.9 m/sec2 -0.60 m/sec2
2.9 m/sec2 -0.60 m/sec2
2.9 m/sec2 -0.60 m/sec2
2.8 m/sec2 -0.70 m/sec2
2.8 m/sec2 -0.70 m/sec2
2.5 m/sec2 -1.00 m/sec2
1.9 m/sec2 -1.60 m/sec2

The difference between best and worst was 45.7% (1.6 m/sec2).

Comfort

1

Noise

External noise in dB

Lower is better ↓
Noise
Position / TyreResultGap to best
71.1 dB Best
71.2 dB +0.10 dB
71.3 dB +0.20 dB
71.5 dB +0.40 dB
71.7 dB +0.60 dB
71.8 dB +0.70 dB
72 dB +0.90 dB
72.3 dB +1.20 dB
72.3 dB +1.20 dB
72.4 dB +1.30 dB
72.4 dB +1.30 dB
72.4 dB +1.30 dB
72.4 dB +1.30 dB
72.8 dB +1.70 dB
72.9 dB +1.80 dB
73.1 dB +2.00 dB
73.6 dB +2.50 dB
73.8 dB +2.70 dB

The difference between best and worst was 3.8% (2.7 dB).

Value

4

Wear

Predicted tread life in KM

Higher is better ↑
Wear
Position / TyreResultGap to best
74,400 KM Best
56,400 KM -18,000 KM
50,800 KM -23,600 KM
50,500 KM -23,900 KM
46,700 KM -27,700 KM
45,100 KM -29,300 KM
44,700 KM -29,700 KM
43,700 KM -30,700 KM
43,400 KM -31,000 KM
42,500 KM -31,900 KM
41,700 KM -32,700 KM
41,500 KM -32,900 KM
40,100 KM -34,300 KM
37,300 KM -37,100 KM
36,600 KM -37,800 KM
34,500 KM -39,900 KM
34,300 KM -40,100 KM
33,600 KM -40,800 KM

The difference between best and worst was 54.8% (40,800 KM).

Value

Euros/1000km based on cost/wear

Lower is better ↓
Value
Position / TyreResultGap to best
1.02 Price/1000 Best
2 Price/1000 +0.98 Price/1000
2.02 Price/1000 +1.00 Price/1000
2.1 Price/1000 +1.08 Price/1000
2.26 Price/1000 +1.24 Price/1000
2.35 Price/1000 +1.33 Price/1000
2.36 Price/1000 +1.34 Price/1000
2.4 Price/1000 +1.38 Price/1000
2.52 Price/1000 +1.50 Price/1000
2.59 Price/1000 +1.57 Price/1000
2.76 Price/1000 +1.74 Price/1000
2.89 Price/1000 +1.87 Price/1000
2.92 Price/1000 +1.90 Price/1000
3.03 Price/1000 +2.01 Price/1000
3.06 Price/1000 +2.04 Price/1000
3.19 Price/1000 +2.17 Price/1000
3.3 Price/1000 +2.28 Price/1000
3.39 Price/1000 +2.37 Price/1000

The difference between best and worst was 232.4% (2.37 Price/1000).

Fuel Consumption

Fuel consumption in Litres per 100 km

Lower is better ↓
Fuel Consumption
Position / TyreResultGap to bestExtra fuel / year
5.3 l/100km Best £0
5.4 l/100km +0.10 l/100km £28
5.5 l/100km +0.20 l/100km £55
5.5 l/100km +0.20 l/100km £55
5.5 l/100km +0.20 l/100km £55
5.5 l/100km +0.20 l/100km £55
5.5 l/100km +0.20 l/100km £55
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.6 l/100km +0.30 l/100km £83
5.7 l/100km +0.40 l/100km £110
5.7 l/100km +0.40 l/100km £110
5.7 l/100km +0.40 l/100km £110
5.8 l/100km +0.50 l/100km £138

The difference between best and worst was 9.4% (0.5 l/100km). Over 19,000 km a year at £1.45/L, the Bridgestone Potenza Sport uses about 95 L (£138) more fuel than the Double Coin DC 100.

Adjust the assumptions

Calculated estimates, not additional measurements. Use the controls to explore the assumptions. These calculators use the full test field, independently of your tyre selection above.

19,000 km
£1.45/L
Estimates based on typical driving conditions. Rolling resistance accounts for approximately 20% of IC vehicle fuel consumption and 25% of EV energy consumption. Actual savings vary based on driving style, vehicle weight, road conditions, and tyre age. For comparative purposes only. Lifetime savings based on a 40,000km / 25,000 mile tread life.

Abrasion

Weight of Tyre Wear Particles Lost (mg/km/t)

Lower is better ↓
Abrasion
Position / TyreResultGap to best
43.9 mg/km/t Best
56.1 mg/km/t +12.20 mg/km/t
61.9 mg/km/t +18.00 mg/km/t
63.4 mg/km/t +19.50 mg/km/t
63.8 mg/km/t +19.90 mg/km/t
67.7 mg/km/t +23.80 mg/km/t
74.2 mg/km/t +30.30 mg/km/t
74.7 mg/km/t +30.80 mg/km/t
75.5 mg/km/t +31.60 mg/km/t
76.3 mg/km/t +32.40 mg/km/t
80.5 mg/km/t +36.60 mg/km/t
80.5 mg/km/t +36.60 mg/km/t
81.1 mg/km/t +37.20 mg/km/t
85.7 mg/km/t +41.80 mg/km/t
85.9 mg/km/t +42.00 mg/km/t
91 mg/km/t +47.10 mg/km/t
95 mg/km/t +51.10 mg/km/t
97.7 mg/km/t +53.80 mg/km/t

The difference between best and worst was 122.6% (53.8 mg/km/t).

Test setup & methodology

The test setting, the conditions recorded and how the results contribute to the score.

Recorded test conditions

Recorded test conditions

Dry Braking
100 → 0 km/h
Wet Braking
80 → 0 km/h
Wet Braking - Concrete
80 → 0 km/h

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