pneumatic tire
A technology of pneumatic tires and tires, which is applied to tire parts, tire treads/tread patterns, vehicle components, etc., can solve problems such as difficulty in improving handling stability and reduced side grip, and achieve improved handling stability and reduced Small drainage resistance, the effect of improving wet road performance
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[0095] Prototypes based on the specifications in Table 1 have figure 1 Four-wheel racing tires with the basic pattern shown, and the wet road grip performance, handling stability and wear resistance performance were tested. The main general specifications and test methods of each trial tire are as follows.
[0096] Tread contact width TW: 85mm (front wheel), 105mm (rear wheel)
[0097] Groove depth of main groove and inclined groove: 5.0mm
[0098] Width W4 of the second part and width W5 of the second sipe: 2% (ratio to tread contact width TW)
[0099] Angle θ2 on the tread end Te of the bent portion: 70 degrees
[0100]
[0101] Under the following conditions, each trial tire was installed on all the wheels of a four-wheel racing car with a displacement of 100cc. The test driver made the racing car run on a test track on a wet asphalt road with a water depth of 5mm, and the test driver's senses responded to it at this time. Ride characteristics related to wet road grip w...
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