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The Shimano Push Rod 86.85mm is a small but essential service part designed for use inside compatible Shimano rear derailleurs. This push rod is a key element in the derailleur’s internal mechanism, helping to transfer movement from the shifter and cable to the derailleur body so that your chain moves smoothly and precisely across the cassette. When this part becomes worn, bent, or damaged, shifting performance can suffer, leading to vague gear changes, hesitation under load, or difficulty indexing your gears correctly.
Replacing the push rod with a genuine Shimano component helps restore the crisp, reliable shifting that Shimano drivetrains are known for. It is particularly useful for riders who log high mileage, ride in harsh conditions, or are rebuilding or overhauling an older derailleur rather than replacing the entire unit. By fitting the correct 86.85mm push rod, you maintain proper alignment and motion inside the derailleur, extending the life of your drivetrain and ensuring consistent performance on every ride.
