10CNB  (RD15655  Idle Gear B)

Genuine Shimano Idle Gear B (part #10CNB, RD15655) — the Idle Gear B is a secondary gear in the reel's drive train that meshes with the main gear assembly to transfer power smoothly and maintain consistent retrieve ratios. A worn, chipped, or stripped idle gear causes gear slippage, grinding, and loss of cranking power under load. Cross-references with Shimano part numbers 10CNB and RD15655. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.