52T 104BCD Sprocket Spider Adapter Aluminium Alloy High Hardness Drive Chainring for Bafang Mid Motor BBS01 BBS02 Black

Feature: 1. Premium Aluminium Alloy: The product is made of aluminum alloy, the hardness is much higher than that of the original steel sprocket, and it is sturdy and durable. 2. Applicable: This sprocket spider adapter is compatible for Bafang electric bike mid drive motor BBS01 BBS02. 3. High Accuracy: The product adopts aluminum alloy CNC cutting to ensure the accuracy of product use. 4. Not Easy to Bend: The product has fine workmanship, which is not easy to be damaged and bent, and it has a long service life. 5. High Efficiency: This product can make your motor spin faster and more efficiently, especially when you are riding on steep slopes. Specification: Item Type: Sprocket Spider Adapter Gross Weight: 229g 8.1oz Material: Aluminium alloy BCD: 104mm 4.1in Fits: 7,8,9,10,11 speeds. Package List: 1 x Sprocket Spider Adapter