CG125 motorcycle oil gauge, thread size, scale length and CG125 engine oil filling port fully match, directly replace the original oil gauge, without adjustment can accurately detect oil quantity; Mark "upper limit" and "lower limit" on the scale, and observe the oil quantity intuitively to avoid engine failure caused by too much/too little oil; Thread and filling port closely fit, can effectively prevent oil leakage, while blocking dust into the crankcase; Insert the oil filling port to read the oil quantity, simple operation, daily maintenance without professional tools.