Quantity: 1pc. for Rear Tubeless Tire Radial Rim Diameter (Inch): 17 Tire Width (mm): 180 Aspect Ratio (%): 55 Type: for On-road Circuit Load Index: 73 Speed Symbol: W Size: 180/55ZR17 M/C (73W) TL For more aggressive riding from race to circuit, the new tread pattern is designed to make the circuit tread more roadworthy. Why do you recommend [MICHELIN POWER CUP 2]? Public Roads Roadworthy Tire for Circuit Excellent dry grip 2CT on the front tire and 2CT+ on the rear tire for improved corner ring stability. Also, for superior performance in circuit, the tread design and compound (Black carbon) are placed on each front and rear.. *VoidRatio is the ratio of the grooves in the TotalArea of the Tread. (e.g. 0% = slick) New VELVET125Technology Side wall surface's micro-structure absorbs light and improves the visibility of the brand and tire pattern and creates a beautiful design (Color:Gray and Black Contrast).. *Please note that the specification may change due to manufacturer process. *Please use the published tire corresponding vehicle models as a reference. It may differ from the actual size. There are cases that the size may be different due to minor change, special specification car and custom situation depending on the vehicle model even it has the same vehicle name, engine displacement, and model. Please make sure to check the tube, size, speed symbol, load index, tire type, etc. of the tires that are actually mounted, and select the size and pattern at your own risk. *Please check the direction of rotation with the arrows on the tread shoulder and sidewall.