| 摘要 |
PROBLEM TO BE SOLVED: To prevent theft of a bicycle's seat part when the bicycle is locked to prevent theft. SOLUTION: The bicycle has an anti-theft lock secured to the seat part 1 having a seat post 11 removably inserted into an upright pipe 30, and a saddle 10 mounted at the upper end of the seat post 11. The anti-theft lock has a wire 51 capable of being passed into the rim 41 of the rear wheel 4.
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