Bridgestone M603 and M604 tires feature a newly adopted mid-camber basin that gives flexibility and plant to the tire without dropping stiffness of the tread block. The m603 allows each block to adapt to the ground surface which gives an improved balance of lean grip, straight drive stability and light handling. M604 has a redesigned broad range supercross proven tread pattern which cuts through loose terrain to find traction and grip on a firm base. These tires have improved grip and traction that adapts to the high power and torque of the current four stroke machines. | 
