Csa Test Winner En

OFFPRINT

5/2008

t p r e c Ex

TYRE COMPARISON TEST

TEXT: JÖRG SCHÜLLER PHOTOS: MARKUS JAHN, JÖRG KÜNSTLE, STEFAN MERSCHHEIM

40

45

SPORT 1

1

2

3

4

5

11

22

33

44

55

62

73

84

9 5 10

66

77

88

99

10 10

DUNLOP QUALIFIER RR

METZELER SPORTEC M3

MICHELIN PILOT POWER 2CT

PIRELLI DIABLO ROSSO

Performance when cold

Performance when cold

Performance when cold

Performance when cold

Handling

Handling

12 12

Precision

Precision

Precision

Precision

Precision

Feedback

Feedback

Feedback

Feedback

Feedback

Feedback

Straight line stability

Straight line stability

Straight line stability

Straight line stability

Cornering stability

Cornering stability

Cornering stability

Cornering stability

Cornering stability

Cornering stability

Brake stability

Brake stability

Brake stability

Brake stability

Brake stability

Brake stability

Tendency to stand up on brake Tendency to stand on throttle

Tendency to stand up on brake Tendency to stand on throttle

Grip

Grip

Technical data

Technical data

21 2622 2723 2824 2925 30

Width front/rear (mm)

120/190

BRIDGESTONE BT-016

CONTI SPORT ATTACK

Performance when cold

Performance when cold

Handling

Handling

Precision

Width front/rear (mm) Weight front/rear (gram)

119/193 4100/6470

Max. lateral acceleration (m/s²)

41

42

Max. braking rate (m/s²) Lap-/Section time (min)

47

4130/6390

Max. lateral acceleration (m/s²)

12,43

Max. braking rate (m/s²)

1:30,78/40,1

45 48

41 44

42

Lap-/Section time (min)

Tendency to stand up on brake Tendency to stand on throttle

Tendency to stand up on brake Tendency to stand on throttle

Grip

Grip

47

Width front/rear (mm)

119/188

Weight front/rear (gram)

Max. braking rate (m/s²)

12,85

Max. braking rate (m/s²)

37

38

39

40

11,96

31 31

12,22

1:31,99/40,7

The Sportec M3 demonstrates Metzeler’s extensive experience with zero-degrees steel-belted tyres: The tyre bravely responds to the rider's demands, from comfortable cruising to sharp acceleration. In the last case, the rear wheel is beaten by the competition, having problems with grip on the gas in corners and also feeling mushier than the Conti or the BT 16. It is probably not a bad tyre, with a wide range of use. On the road, the Metzeler runs wonderfully, but as soon as speeds become illegal, it is less exact. Respectfully, PS awards the M3 the distinction „fearless workhorse“. It is a true companion, taking you wherever you want, and, when spurred, can increase its pace. What more could you want?

48 3632 49 3733 3834 3935 40 31

A huge pile of tyres: 11 pairs, plus spares, to fit, balance, measure, ride and evaluate and then check the information …

2 PS 5/2008

4310/6250

12,61

36

23 23

24 24

36 36

27 27

28 28

Weight front/rear (gram)

33 33

Max. braking rate (m/s²) Lap-/Section time (min)

25 25

Tendency to stand up on brake Tendency to stand on throttle

Technical data

118/193

Width front/rear (mm)

38 38

30 30

120/190

Weight front/rear (gram)

4320/6260

11,7

Max. lateral acceleration (m/s²)

12,4

12,5

Max. braking rate (m/s²)

12,3

34 34

1:32,25/40,9

2CT has two rubber compounds: a hard and durable compound for the centre section and a soft on the flanks for grip and reserves. This is nothing special, as Bridgestone runs with three and Conti runs with continuously changing rubber. Perhaps it's simply time for a successor to the Pilot Power: it only has to have performance equal to the 2CT in everyday situations, sensational grip when cold and wet, extensive mileage, precise steering and tracking. However, bigger reserves when gassing it, would be great. The current 2CT reaches its limit at a certain speed, limps along at the rear and doesn’t feel good when leaned over extremely – 2.5 bar at the rear brought an improvement, but not enough to catch up with the fastest. The 2CT remains a top everyday tyre.

37 37

20 20

Straight line stability

29 29 4210/5940

Max. lateral acceleration (m/s²)

32 32

15 15

Handling

Grip

Width front/rear (mm)

Lap-/Section time (min)

19 19

Tendency to stand up on brake Tendency to stand on throttle

118/188

Max. lateral acceleration (m/s²)

Last year’s winner, this year’s problem child: In cold, new condition the Qualifier failed to impress, surprising us with one heavy fall and several unexpected slides. It has to be run in and warmed up carefully. After a couple of laps, the rear tyre ran extremely hot. Results improved when the rear tyre pressure was reduced to 2.1 bar, but even then it felt nervous and jittery at a quick road pace. Then the big surprise; over a certain pace, the tyre suddenly performed sharply and became quick. In this field, the Qualifier behaved the most like a racing tyre, requiring pressure and a quick pace but could then compete with the best, as the recorded times show. It didn't entirely demonstrate the relaxed composure of its fast competitors. It is a tyre for aggressive riders.

22 22

Width front/rear (mm)

12,39

1:31,40/40,0

18 18

Straight line stability

Technical data

Max. lateral acceleration (m/s²)

Lap-/Section time (min)

14 14

Grip

11,98

1:31,51/40,4

17 17

26 26

Weight front/rear (gram)

4300/5870

21 21

Handling

13 13

Technical data

43 3127 44 3228 3329 3430 35 26

Wow, already the first meters make you smile, as the Sport Attack rolls, new and cold, with surprising, almost boring confidence. And it's getting better: the longer the ride, the better the tyre. Not the slightest uneasiness can be felt while cornering; even down to extreme lean angles front and rear are working together fantastically. Steering is easy, without becoming nervous. Wonderfully stable during braking and no regard for chattering. The power of a 1000cc bike suits the temperament of the Sport Attack and it is only when rider gives gas at extreme lean angles that it begins to move slightly, but this is in a range that will never happen on the road in everyday use. A great tyre, a test winner.

46 49

16 16

16 2117 2218 2319 2420 25 Technical data

Weight front/rear (gram)

11 11

11 1612 1713 1814 1915 20

12,45

40 43

Almost the winner. Why? Its only weak point was that although the new Bridgestone BT 16 performed well from cold for this type of fast tyre, it just didn’t perform as well as the Sport Attack or the Pilot Power. After all, cold running or even cool running is part of everyday driving - so points had to be deducted. But in return this tyre is a great performer. From the zero-degrees technology to the three rubber compounds at the front or the five at the rear: The BT 16 excels thanks to its excellent grip with unbeatable feedback and incredible manners, subjectively but also recorded. The BT 16 is the fastest tyre here, doesn’t pose questions but has an answer for everything. Hats off!

46

6 11 7 12 8 13 9 1410 15

39 39

35 35

Lap-/Section time (min)

1:31,27/40,4

For an everyday tyre, the Diablo Rosso gives supersports performance. „The tyre needs a firm hand,“ according to the test report. Truth is, the Rosso needs persuasion to follow the correct line into and out of bends. If you don't treat it firmly enough, the tyre becomes imprecise; a light crack of the whip, however, and everything works. It is surprising what grip reserves the tyre can muster. It is also surprising that at slower speeds (i.e. on the road), the front tyre almost falls into corners, but at faster speeds it feels slightly unwilling. A problem? No, this is only noticed when compared to the excellent test selection. The Diablo Rosso is an incredibly speedy tyre with good qualities for everyday use.

40 40

Put it all on paper, before you forget: After every turn, each rider’s impressions are taken down, together with the recorded information

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PS 5/2008

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