5Set 12mm/14.5mm/18mm) Bike Disc Brake Oil Observation Window Electric Bike Accesories

Label:Yes Color:As your choose Size:12mm(0.47in)/14.5mm(0.57in)/18mm(0.71in) Quantity:5Sets Brand new with high quality Pump oil mirror on disc brake (12mm(0.47in)/14.5mm(0.57in)/18mm(0.71in)) Material:Rubber/TBS The oil mirror measurement is based on the diameter of the metal outer ring. Generally, the oil mirrors for electric motorcycles are mainly 12mm(0.47in) and 18mm(0.71in), with 14.5mm(0.57in) being less commonly used. This oil mirror is made of imported TBS material (special resin), not ordinary glass Oil change mirror method: 1. Use tools to lift the old oil mirror out. 2. Install the new oil mirror from the outside to the inside. 3. Refuel and exhaust air. 4. For detailed installation tips and precautions (in text form), please contact the store after purchasing and paying. 5. For first-time customers, it is recommended to take more backup photos. Package Include: 5Sets Scooter Bike Disc Brake Upper Pump 12/14.5/18mm(0.47/0.57/0.71in) Oil Observation Window Note: 1.1cm(0.43in)=10mm=0.39inch 2.Please allow 0-2cm(0.00-0.79in) error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!