單車 BIKE 700 公路車 捷安特Giant RJ800鋼管公路車

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20221123

.外胎:=700X25C      28X 1 5/8 X 1 1/8

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20221115

鏈條更新..

鏈條更新..后變1.2.3=依舊跳鏈...453正常..

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雙軸打鏈器的使用...https://www.kmcchain.com/tw/teach/pin-reversible-riveter....

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兩輪皆生鏽..

黑白鐵鋼絲.尺吋292MM.一支10元

@ giant   公路車  前輪...36孔前花鼓...36條...29.9cm299

                             兩輪全部更新..72+8=買80*297mm

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20221104..換後變依舊會落鏈...準備換鏈條...

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20221103...大盤更新...依舊不合...

接下來要換鏈條..

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20221030.

???用力踏會跳鏈?????

52T     BCD=120

..52T....

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2022/3/30

***前後變速線更新***全新論胎....

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.***捷安特12速老公路車自取3000元..giant rj-800 

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