The types of bicycle flywheels are mainly divided into multi-stage flywheels and single-stage flywheels.
Multi stage flywheel: This is based on a single stage flywheel, which combines several flywheel plates with the sprocket on the central shaft to form various transmission ratios, thereby changing the speed of the bicycle. Multi stage flywheels usually have 5, 6, 7, 8, 9, and 10 pieces, providing multiple speed options, suitable for mountain bikes, road bikes, etc.
Single stage flywheel: mainly composed of outer shell, flat gear and core, jack, jack spring, washer, wire stopper, multiple steel balls and other parts. The working principle is that when the foot pedal is stepped forward, the chain drives the flywheel to rotate forward, and the rotational force of the flywheel is transmitted to the core through a thousand pounds. The core drives the rear axle and rear wheel to rotate, causing the bicycle to move forward. Single stage flywheel is generally used in ordinary bicycles and does not have a variable speed function.
In addition, flywheels can also be classified according to assembly methods, including threaded, cartridge, and a type called a dead flywheel, which is a toothed iron plate commonly used for beach bikes, etc. According to the variable speed method, flywheels are divided into variable speed multi-stage flywheels and non variable speed single-stage flywheels. The mainstream flywheel speeds for mountain bikes are 8 speed, 9 speed, and 10 speed, while competition levels tend to use 10 speed, further subdivided into different sizes for leisure and competition leisure.
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Model：FW30 Model：FW16
