A vehicle wheel includes a wheel body having an elongated guiding slot radially extended from a center of the wheel body; and an axle centrifugal adjusting arrangement, which includes a sliding member slidably mounted along the guiding slot for mounting the wheel body to the wheel axle; and a gear adjustment device including a first gear unit mounted at the guiding slot of the wheel body, and a second gear unit mounted at the sliding member to substantially engage with the first gear unit so as to selectively adjust the sliding member to slide along the guiding slot.

 
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> Rubber composition for a tire comprising a coupling agent (white filler/diene elastomer) activated by a heat-triggered radical initiator

~ 00364