BOLANY Mountain Bike 9 Speed Cassette Flywheel 36T Flywheel Road Bike Gear Accessories

Feature: 1. Material: The surface is nickel plated with chrome molybdenum steel material, and it is compatible with large scale brand shifting systems. 2. Performance: High rigidity and high strength, higher wear resistance than peers, corrosion resistance, good heat resistance, and less internal friction. 3. Flywheel Features: The flywheel rotates steadily and has no noise, and has high accuracy internal threads to ensure tight connection with the bike hub. 4. Chain Groove + Mud Hole: Guide chain groove design makes shifting more sensitive, the mud drain hole is easier to clean and not easy to drop the chain. 5. Teeth Number: Number of flywheel teeth are 11‑13‑15‑18‑21‑24‑28‑32‑36T and compatible for HG system. Specification: Item Type: Bicycle Flywheel Product Style: 9 Speed 36T Product Material: Chrome Molybdenum Steel (Nickel Plated Surface) Color: As Pictures Shown Weight: Approx. 504g 17.8oz Number of Teeth: 11 13 15 18 21 24 28 32 36T Application: for HG System. Package List: 1 x Cassette Flywheel3 x Cassette Flywheel Accessories Note: