9s Sprocket Freewheel Speed Road Bike Freewheel Cassette Sprocket Bicycle Replacement Accessories Compatible with Mountain 9/10/11/12 32/36/42/50T

[Smooth and Quiet Shifts] Experience the smoothest bike ride ever with our premium quality flywheel. Promising smoother and quieter shifts, ensuring a peaceful and enjoyable ride every time. [Perfect replacement for your old flywheel] Improving your bike's performance has never been easier. Replace your battered flywheel with our top-of-the-line flywheel to ensure perfect operation. 【Durable Materials and Processing】Made from high-pressure steel plate, this flywheel has undergone nickel and chrome plating treatment. This ensures not only durability but also resistance to corrosion, allowing long-term use. 【Lightweight and Hollow Design】The hollow design of this flywheel reduces weight without sacrificing performance. This lightweight design promotes better and faster bike speeds and is perfect for competitive cycling. 【Perfect for various types of bicycles】Whether it's a mountain bike or a regular bike, this flywheel will get the job done efficiently and is a very versatile accessory. Item Type: Freewheel Material: Chrome Molybdenum Steel Color: As Pictures Speed: 9/10/11/12 Speed Options: 9S 11-32T, 10S 11-36T, 11S 11-42T, 12S 11-50T9S 11-32T Weight: 326g10S 11-36T Weight: 418g11S 11-42T weight: 542g12S 11-50T weight: 607g