Parallel Pin 2 x 11.6 (Hirobo HI2509012) for Helicopter Linkages  [HI2509012]

Replacement parallel pin for control linkages

This RC-scale parallel pin appears in parts lists as 2509-012 and is referred to by model HI2509012; it is supplied as a spare for general helicopter maintenance. The key identifier is the pin size "2 x 11.6", which should be used to verify compatibility with your model.

Its role is to act as a simple locator in linkage assemblies and at small rotor pivots. The pin is suitable for replacing lost or worn pins that share the same "2 x 11.6" specification so linkage geometry and alignment are preserved.

Fitting the pin is routine: align the bracket or linkage hole, slide the pin into position, and secure it with the model's original retainer or clip. After fitting check for unwanted lateral movement and confirm rotor tracking before flight.

While small, the pin supports correct linkage geometry that influences cyclic and tail response. When replacing pins during setup or tuning, inspect mating holes for wear and ensure surrounding parts remain serviceable.