Bicycle chain shifting structure and bicycle
A bicycle and chain structure technology, which is applied to vehicle components, vehicle gearboxes, chain/belt drives, etc., can solve the problems of inability to protect the crank, increase the risk of damage, and high production costs, and simplify the structure of bicycle derailleurs. , the structure is simple and reliable, and the production cost is low.
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[0036] refer to Figure 1 to Figure 3 , the bicycle 100 comprises a bicycle derailleur structure, and the bicycle derailleur structure comprises a vehicle frame 1, a hub axle 21, a hub shell 22, a freewheel set 23, a chain 24, a first sprocket 25, a derailleur 3, a shifter 41 and Shift cable 42.
[0037] Wherein, the vehicle frame 1 has a first rear fork 11 and a second rear fork 12 oppositely arranged, the hub axle 21 straddles between the first rear fork 11 and the second rear fork 12, and the hub shell 22 is sleeved on the hub axle 21 , and the hub shell 22 is rotatably connected with the hub shaft 21 around the axis of the hub shaft 21 . Furthermore, the hub shell 22 constitutes a wheel through spokes, a rim and a tire. The shifter 41 is installed on the handlebar of the vehicle frame 1 , the first end of the shift wire 42 is connected with the shifter 41 , and the second end of the shift wire 42 is connected with the derailleur 3 .
[0038] The flywheel set 23 is set o...
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