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THALOUS Bicycle Front Derailleur FD-TY300 3x6/7 Speed Tourney Up/Down Swing for Mountain Road Bike 31.8mm 34.9mm
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THALOUS Bicycle Front Derailleur FD-TY300 3x6/7 Features
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Model: Bicycle front derailleur FD-TY300 UP swing, suitable for 3x7 and 3x6 speed system. Please choose the one that suits your bike before buying
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Installation diameter:34.9 mm; Compatible tooth ratio:42T; Drawing mode:up double pull
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Double SIS positioning: 47.5-50 mm chain center line compatible with wide chain design, which can improve variable speed response and extend service life
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Features: Clamp Band Mount; Made of high strength aluminum alloy material,strong and durable,lightweight design
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Principle of speed change: The speed change line pulls the guide chain piece to toggle the chain, so that the chain runs on different tooth pieces of the tooth disk, realizing the tooth ratio of different speeds, making the riding more effortless and faster.
