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FREEWHEEL & CASSETTE
When SIS adjustment of back dialer is carried out, the chain is in the state of hanging on the second chain wheel of the largest chain link. Rotate the crank to make the transmission handle easy
Flower drum, commonly known as "flower drum barrel", is the barrel outside the shaft connecting spokes, usually also known as axle skin. According to the different arrangement of the number
The inner thread of the flywheel is screwed to the right end of the rear axle to keep the same plane with the sprocket and connected with the sprocket through the chain to form the driving system
Founded in 1991, Ningbo Sunrun Industry & Trade Co.,Ltd. is a professional manufacturer engaged in producing bicycle transmission parts.
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