1. Company Presentation 2009
DEKRA TYRE WEAR TESTS 2010/2011
Methodology & Test Results

2. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Test process
July 2011
DESIGN
/
PLANNING
RECEIPTS PREPARATION
DEKRA Test Center
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REALIZATION TEST FINALIZATION

3. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Design
July 2011
-1 TYPE OF SEGMENT MARKET -1 TYPE OF VEHICLE
-1 NUMBER OF COMPETITORS -1 TYPE OF CIRCUIT
-1 PERIOD -1 METHOD
-1 USAGE OF THE TYRE -1 SCHEDULE
DEKRA Test Center
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4. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Receipts : specificities
July 2011
TYRES : -Check of characteristics and identification,
-Check of manufacturing date (DOT).
VEHICLES : -Check of characteristics,
-Check of condition,
-Check and adjustment of alignment
in car manufacturer condition for 1
DEKRA Test Center
vehicle (reference).
OTHER EQUIPMENTS : -OEM spare parts, fuel…
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5. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Preparation
July 2011
TYRES : -Marking and weighing,
-Photography for traceability,
-Mounting on rims and wheels balancing,
-Footprint + definition of measuring points,
-Initial tread depth measurements.
VEHICLES : -Loading,
-Alignment measurement and settings,
DEKRA Test Center
-Instrumentation and calibration.
OTHER : -Documentation,
-Schedule of driving and measurements.
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6. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Realization of the tests
July 2011
DRIVING SHIFT :
-CONVOY DRIVING on the circuit,
-ROTATION OF THE DRIVERS,
-Records (handwritten + recorder)
and datas transfer,
-ROTATION OF THE TYRES.
DEKRA Test Center
MEASUREMENT SHIFT :
-Tyres measurements,
-Intermediary datas processing.
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7. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions
July 2011
PROFESSIONNAL DRIVERS :
- Recruited directly by DEKRA Test Center,
- Trained and approved,
- Strictly respect of the Highway Code,
- Mastering trajectories,
- Always vigilant,
DEKRA Test Center
- Smooth driving,
- CONVOY driving.
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8. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : driver rotations
July 2011
DEKRA PROFESSIONNAL DRIVERS
DRIVERS ROTATION = minimization of drivers influence
DEKRA Test Center
D C B A
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9. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : driver rotations
July 2011
DRIVERS ROTATION = minimization of drivers influence
DEKRA Test Center
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10. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : driver rotations
July 2011
DRIVERS ROTATION = minimization of drivers influence
DEKRA Test Center
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11. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : driver rotations
July 2011
DRIVERS ROTATION = minimization of drivers influence
DEKRA Test Center
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12. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : tyre rotations
July 2011
Day 1 / Cycle N+1
1 2 3 3 4 4
1 2
DEKRA Test Center
4 4
1 2 3
1 2 3
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13. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : tyre rotations
July 2011
Day 1 / Cycle N+1 Day 2 / Cycle N+1 Day 3 / Cycle N+1 Day 4 / Cycle N+1
A 4
A 4 A 2
A 2
1 1 3 3
B B B B
2 2 1 1 4 4 3 3
DEKRA Test Center
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C C C C
3 2 2 1 1 4 4
D D D D
4 4 3 3 2 1 1
2
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14. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
July 2011
Measurement
DEKRA Test Center
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End of cycle

15. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Focus on driving conditions : tyre rotations
July 2011
Day 1 / Cycle N+1 = Day 1 / Cycle N+2
A B C D
3 4 4
DEKRA Test Center
2 2 3
1 1
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16. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Finalization of the tests
July 2011
TYRES : -Photography,
-Dismounting,
-Preparation for storage,
-Then shipping or destruction.
VEHICLES : -Alignment measurement,
-Preparation and return to the supplier.
DEKRA Test Center
RESULTS : -Calculation of average results per axle,
and per set,
-Calculation of results proportionnated to the control tyres of each
convoy,
-Ranking.
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17. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Finalization : specificities
July 2011
RESULTS :
-Calculation of average results per axle, and
per set,
-Calculation of results proportionnated to the
DEKRA Test Center
control tyres of each convoy,
-Ranking.
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18. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST RESULTS
RESULT OF TIRE SEGMENT 235/35 ZR 19 Y - Extraction of Report CPA MARK10I 2010
May 2010 DEKRA Test Center - Z.A. La Plaine Sud - Montredon - Rue du Castellas - BP 223 - 11102 NARBONNE CEDEX – France
Tél : 33 (0) 4 68 42 22 32 ; Fax : 33 (0) 4 68 41 73 84 ; E-mail : dekra.test.center@orange.fr

19. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
TESTED TIRES - 235/35 ZR 19 Y
BRIDGESTONE CONTINENTAL DUNLOP
POTENZA S001 CONTISPORTCONTACT 5P SP SPORT MAXX GT
GOODYEAR PIRELLI MICHELIN
EAGLE F1 ASYMETRIC P ZERO PILOT SUPER SPORT
May 2010

20. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
TEST VEHICLES CHARACTERISTICS - 235/35 ZR 19 Y
VEHICLE TYPE : BMW 320 d
ENGINE TYPE : 4 cyl. 2.0 l. Diesel
MAX. ENGINE POWER : 163 hp / 120 kW
DRIVE CONCEPT : rear
MAX. TORQUE : 350 Nm at 1 750 rpm.
GEARBOX : 6-speed manual
May 2010 TEST WEIGHT : 1 680 kg

21. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
RESULT OF TIRE SEGMENT 235/35 ZR 19 Y : LONGEVITY TEST
30% 40% 50% 60% 70% 80% 90% 100% 110%
MICHELIN MICHELIN
PILOT SUPER SUPER SPORT 100%
PILOT SPORT
GOODYEAR
PREMIUM A 91%
EAGLE F1 ASYMETRIC
CONTINENTAL
PREMIUM B 84%
CONTISPORTCONTACT 5P
PIRELLI
PREMIUM C 75%
P ZERO
PREMIUM D BRIDGESTONE 64%
POTENZA S001
DUNLOP
PREMIUM E 60%
SP SPORT MAXX GT
Arithmetic average of tested tires
Treadlife extrapolation (after a test mileage of 7 300 km) based on the
May 2010 most worn groove on both rear tires – Base 100
Results being from an extraction, ordered by Michelin, of a tests Report ”CPA MARK 10 I” of the 26 April 2010 realized in April 2010 by DEKRA Test Center

22. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST RESULTS
RESULT OF TIRE SEGMENT 255/35 ZR 19 96Y - Extraction of Report CPA MARK11E 2011
May 2011 DEKRA Test Center - Z.A. La Plaine Sud - Montredon - Rue du Castellas - BP 223 - 11102 NARBONNE CEDEX – France
Tél : 33 (0) 4 68 42 22 32 ; Fax : 33 (0) 4 68 41 73 84 ; E-mail : dekra.test.center@orange.fr

23. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
TESTED TIRES - 255/35 ZR 19 96Y
BRIDGESTONE CONTINENTAL DUNLOP
POTENZA S001 CONTISPORTCONTACT 5P SP SPORT MAXX GT
GOODYEAR PIRELLI MICHELIN
EAGLE F1 ASYMETRIC2 P ZERO PILOT SUPER SPORT
May 2011

24. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
TEST VEHICLES CHARACTERISTICS - 255/35 ZR 19 96Y
VEHICLE TYPE : Audi A4
ENGINE TYPE : 4 cyl. 2.0 TDI
MAX. ENGINE POWER : 120 hp / 88 kW
DRIVE CONCEPT : front
MAX. TORQUE : 290 Nm at 1 750 rpm.
GEARBOX : 6-speed manual
May 2011 TEST WEIGHT : 1 774 kg

25. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
TIRE LONGEVITY TEST
RESULT OF TIRE SEGMENT 255/35 ZR 19 96Y : LONGEVITY TEST
30% 40% 50% 60% 70% 80% 90% 100% 110%
GOODYEAR
PREMIUM A F1 ASYMETRIC2 100%
EAGLE
MICHELIN MICHELIN
PILOTPILOT SUPER SPORT
SUPER SPORT 100%
PREMIUM B PIRELLI
P ZERO
97%
CONTINENTAL
PREMIUM C
94%
CONTISPORTCONTACT 5P
PREMIUM D DUNLOP
77%
SP SPORT MAXX GT
PREMIUM E BRIDGESTONE
63%
POTENZA S001
Arithmetic average of tested tires
Treadlife extrapolation (after a test mileage of 10 000 km) based on the
May 2011 most worn groove on both front tires – Base 100
Results being from an extraction, ordered by Michelin, of a tests Report ”CPA MARK 11 E” of the 18 May 2011 realized between April and May 2011 by DEKRA Test Center

26. DEKRA Test Center – Tyre Wear Tests 2010/2011 – Michelin Pilot Performance Days
Thank you for your interest !
July 2011
Any questions?
DEKRA Test Center
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