Bridgestone Adv Radia 150/70ZR18 (70W) A41R Tbl Tyre RearBridgestone Adv Radia 150 70ZR18 (70W) A41R Tbl Tyre Rear The Battlax Adventure A41 Tires from Bridgestone were designed with the current crop of high displacement, high horsepower ADV bikes in mind. A huge emphasis was put on improving rider confidence and wet weather handling. The sea land ratio at the shoulders of both the front and rear hoops has been increased to facilitate faster water evacuation and a larger tread block has been used at the