E-Bike Single Speed Freewheel, 16 Teeth Bike Freewheel Cassette Sprocket Specification: Condition: 100% Brand New Item Type: Bike Freewheel Material: Metal Size: Approx. 5 * 5 * 5cm / 2.0 * 2.0 * 2.0inch Weight: Approx. 139g Package List: 1 * Bike Freewheel HEAT RESISTANCE: Made of high quality metal, anticorrosive, good heat resistance, do not worry about the long-term use of friction heat, affecting its life. SMOOTH ROTATION: Characterized by smooth rotation without much noise, high precision internal thread, ensure close connection with bicycle hub, smooth operation. CONVENIENT FOR USE: Provides fast riding speed and reduces the works required. Lightweight and small, easy to install on your bike. SPECIAL DESIGN: The unique removal notch pattern that is flush with the freewheel for better frame clearance, its usually good practice to replace your chain when replacing a worn or worn freewheel.