Radiators are used for cooling internal combustion engines. For motorcycle, cooling fans are used more. The radiators‘ working principle is to cool down the heat engine, a coolant is passed through the engine block, where it absorbs heat from the engine. The hot coolant is then fed into the inlet tank of the radiator (located either on the top of the radiator, or along one side), from which it is distributed across the radiator core through tubes to another tank on the opposite end of the radiator. As the coolant passes through the radiator tubes on its way to the opposite tank, it transfers much of its heat to the tubes which, in turn, transfer the heat to the fins that are lodged between each row of tubes. The fins then release the heat to the ambient air. Fins are used to greatly increase the contact surface of the tubes to the air, thus increasing the exchange efficiency. The cooled liquid is fed back to the engine, and the cycle repeats. Since air has a lower heat capacity and density than liquid coolants, a fairly large volume flow rate (relative to the coolant's) must be blown through the radiator core to capture the heat from the coolant. Radiators often have one or more fans that blow air through the radiator. Ram air can give a portion or all of the necessary cooling air flow when the coolant temperature remains below the system's designed maximum temperature, and the fan remains disengaged. The radiator include shroud comp, fan comp, cap comp, seal, upper and lower hose, breather tube, reserve tank and cover, heat guard rubber, water hose clamp, radiator mounting collar, headlight case and so on. We can offer motorcycle Drive face for many different models,Yamaha,YBR125 RX115 RX100 DT175 BWS100 Honda C70 C90 CG200, Kawasaki,SUZUKI,KTM, Simson and so on.