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做個標記以備不時之需

定義 B-screw: A screw used to adjust the spring tension on the mounting pivot, which affects the distance between the cogs and the guide pulley
症狀 If the shift performance is poor in several outer cogs but good in all the inner cogs, it may indicate that the B-screw or chain length needs adjustment.
*調整b-adjust screw,讓導輪與最大飛輪齒片間距約 6mm
pqaf wrote:
想請問版上大大,圖片中紅圈那顆螺絲是