11 Speed Bike Freewheel - 11-40/42/46T Hollow Design Cassette for Hybrid, Road & City Bikes | Durable Replacement Part (Silver, B11-42) | Perfect for Commuting, Racing & Urban Cycling

★The whole is made of high-grade metal and has undergone special processing. Corrosion resistance, good heat resistance, and long service life.The internal thread has high precision, which can ensure the close connection with the bicycle hub and stable rotation. ★Specification:- Color: Black- Material: Chromium molybdenum steel and aluminum alloy flywheel.- Teeth Number: 11-Speed, 11-40/42/46T.- Speed: 11 Speed.- Weight: Type A Weight: Net weight 449G/486G/556G.- Weight: Type B Weight: Net weight 401G/401G/465G.- Teeth Number: Type A:11-13-15-17-19-21-24-28-32-36-40T11-13-15-17-19-21-24-28-32-36-42T11-13-15-18-21-24-28-32-36-40-46TType B:11-13-15-17-19-21-24-28-32-36-40T11-13-15-17-19-21-24-28-32-36-42T11-13-15-18-21-24-28-32-36-40-46T★Feature:- Hollowing technology can easily reduce weight, make riding lighter.- Lightweight and compact,easy to disassemble or install on the bicycle with a freewheel tool.- High-precision internal thread to ensures close connection with the bicycle hub and stable rotation.- Close ratio gearing allows a more efficient use of energy through finer cadence control.★Package Contain:1 x Freewheel★Matters Needing Attention：- When the flywheel chain is used in combination with the old and new, the chain will slip and jump at the beginning. This is because the old parts are worn out during long-term use, and when the new parts are used in combination, the wear of the teeth makes it impossible to effectively engage. Generally, in such a situation, you only need to continue to run for tens of kilometers, and the problem will automatically disappear. If your chain has been used for more than 3,000 kilometers, it is recommended to change the chain at the same time as you change the flywheel.★Quality Service:- We are committed to bringing the latest and most innovative high-quality bicycle a

??‍♀️Material: Chromium molybdenum steel and aluminum alloy flywheel.

??‍♀️Size: 11-40/42/46 Teeth, 11 speed freewheels provide convenient and efficient gear shifting for all riders. Type A Weight: Net weight 449g/486g/556g.Type B Weight: Net weight 401g/401g/465g.

??‍♀️Hollow Carving Technology: Hollowing technology can easily reduce weight, Dense gears can more accurately control the rhythm and improve efficiency.

??‍♀️Feature: Provide fast and accurate index conversion function through special tooth profile and ramp, it delivers smooth gear steps across its 11 speed range, accurate positioning.

??‍♀️Application: This kind of flywheel is one of the most durable flywheels of multi-speed bicycles. Suitable for mountain bikes and folding bicycles, hybrid bikes, city bikes, beach cruiser bikes, and so on.