Test Charts / Auto Bild
2024 Motorhome Summer Tire Test
Compare each discipline in the tested size. See the measured result, position and gap to the best tire, then read the verdict for the trade-offs behind the finishing order.
- Tested size
- 225/55 R17
- Tires tested
- 10
- Disciplines
- 8
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 tires can be separated by very different margins.
Positions and gaps always refer to the full test field within each group. Selecting tires does not recalculate rankings or change the best-in-test benchmark.
Focus on your tires
Select tires to highlight them throughout the charts.
Positions and gaps always refer to the full test field within each group. Selecting tires does not recalculate rankings or change the best-in-test benchmark.
Dry
2Dry Braking
Dry braking in feet (100 - 0 )
Lower is better ↓| Position / Tire | Result | Gap to best | Residual speed |
|---|---|---|---|
| 121 ft | Best | 0 mph | |
| 123 ft | +2 ft | 11 mph | |
| 125 ft | +4 ft | 14 mph | |
| 125 ft | +4 ft | 14 mph | |
| 126 ft | +5 ft | 15 mph | |
| 126 ft | +5 ft | 16 mph | |
| 126 ft | +5 ft | 16 mph | |
| 127 ft | +6 ft | 17 mph | |
| 127 ft | +6 ft | 18 mph | |
| 129 ft | +8 ft | 19 mph |
The difference between best and worst was 6.2% (8 ft ≈ 0.5 Car Lengths). From 80 mph, the Goodride Z 107 ZuperEco would still be travelling at 19 mph when the Continental PremiumContact 7 had stopped.
Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.
Dry Handling
Dry Handling Average Speed
Higher is better ↑| Position / Tire | Result | Gap to best |
|---|---|---|
| 49.2 mph | Best | |
| 49.0 mph | -0.2 mph | |
| 49.0 mph | -0.2 mph | |
| 48.7 mph | -0.5 mph | |
| 48.7 mph | -0.5 mph | |
| 48.5 mph | -0.7 mph | |
| 48.5 mph | -0.7 mph | |
| 48.3 mph | -0.9 mph | |
| 48.3 mph | -0.9 mph | |
| 48.0 mph | -1.2 mph |
All the tires in the Dry Handling test finished less than 3% apart.
Wet
4Wet Braking
Wet braking in feet (100 - 0 )
Lower is better ↓| Position / Tire | Result | Gap to best | Residual speed |
|---|---|---|---|
| 130 ft | Best | 0 mph | |
| 132 ft | +2 ft | 8 mph | |
| 137 ft | +7 ft | 18 mph | |
| 137 ft | +7 ft | 18 mph | |
| 138 ft | +8 ft | 19 mph | |
| 139 ft | +9 ft | 20 mph | |
| 140 ft | +10 ft | 21 mph | |
| 140 ft | +10 ft | 22 mph | |
| 142 ft | +12 ft | 23 mph | |
| 150 ft | +20 ft | 29 mph |
The difference between best and worst was 14.9% (20 ft ≈ 1.3 Car Lengths). From 80 mph, the Goodride Z 107 ZuperEco would still be travelling at 29 mph when the Continental PremiumContact 7 had stopped.
Residual speed is calculated from the measured braking distances, assuming constant deceleration; it is not a separate measurement.
Wet Handling
Wet Handling Average Speed
Higher is better ↑| Position / Tire | Result | Gap to best |
|---|---|---|
| 42.9 mph | Best | |
| 42.5 mph | -0.4 mph | |
| 42.4 mph | -0.5 mph | |
| 42.2 mph | -0.7 mph | |
| 42.2 mph | -0.7 mph | |
| 42.1 mph | -0.8 mph | |
| 42.1 mph | -0.8 mph | |
| 42.1 mph | -0.8 mph | |
| 42.0 mph | -0.9 mph | |
| 41.8 mph | -1.1 mph |
All the tires in the Wet Handling test finished less than 3% apart.
Straight Aqua
Float Speed in mph
Higher is better ↑| Position / Tire | Result | Gap to best |
|---|---|---|
| 58.3 mph | Best | |
| 58.2 mph | -0.1 mph | |
| 57.8 mph | -0.5 mph | |
| 57.8 mph | -0.5 mph | |
| 57.7 mph | -0.6 mph | |
| 57.7 mph | -0.6 mph | |
| 57.4 mph | -0.9 mph | |
| 57.4 mph | -0.9 mph | |
| 56.9 mph | -1.4 mph | |
| 56.7 mph | -1.6 mph |
All the tires in the Straight Aqua test finished less than 3% apart.
Curved Aquaplaning
Remaining lateral acceleration
Higher is better ↑| Position / Tire | Result | Gap to best |
|---|---|---|
| 43.6 ft/s² | Best | |
| 43.3 ft/s² | -0.3 ft/s² | |
| 43.0 ft/s² | -0.6 ft/s² | |
| 43.0 ft/s² | -0.6 ft/s² | |
| 42.7 ft/s² | -0.9 ft/s² | |
| 42.3 ft/s² | -1.3 ft/s² | |
| 41.3 ft/s² | -2.3 ft/s² | |
| 41.3 ft/s² | -2.3 ft/s² | |
| 40.7 ft/s² | -2.9 ft/s² | |
| 40.4 ft/s² | -3.2 ft/s² |
The difference between best and worst was 7.5% (3.2 ft/s²).
Comfort
1Noise
External noise in dB
Lower is better ↓| Position / Tire | Result | Gap to best |
|---|---|---|
| 71.2 dB | Best | |
| 71.3 dB | +0.10 dB | |
| 71.5 dB | +0.30 dB | |
| 71.5 dB | +0.30 dB | |
| 71.6 dB | +0.40 dB | |
| 71.6 dB | +0.40 dB | |
| 71.8 dB | +0.60 dB | |
| 71.9 dB | +0.70 dB | |
| 72.3 dB | +1.10 dB | |
| 73.3 dB | +2.10 dB |
All the tires in the Noise test finished less than 3% apart.
Value
1Rolling Resistance
Rolling resistance in kg t
Lower is better ↓| Position / Tire | Result | Gap to best | Extra fuel / year |
|---|---|---|---|
| 7.66 kg/t | Best | $0 | |
| 7.69 kg/t | +0.03 kg/t | $1 | |
| 7.82 kg/t | +0.16 kg/t | $6 | |
| 8 kg/t | +0.34 kg/t | $13 | |
| 8.34 kg/t | +0.68 kg/t | $26 | |
| 8.38 kg/t | +0.72 kg/t | $28 | |
| 8.42 kg/t | +0.76 kg/t | $29 | |
| 8.47 kg/t | +0.81 kg/t | $31 | |
| 8.85 kg/t | +1.19 kg/t | $46 | |
| 8.86 kg/t | +1.20 kg/t | $46 |
The difference between best and worst was 15.7% (1.2 kg / t). Over 12,000 miles a year at $3.60/gal, the Vredestein Ultrac uses about 13 gal ($46) more fuel than the Pirelli Cinturato P7 C2.
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 tire selection above.
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