3RACING Sakura D3 CS Sport 1.5 x 9mm Steel Gear Pin Set - 5pcs - 3RAC-PN1509 - race spec replacement pins  [3RAC-PN1509]

Race oriented gear retention details

The 3RACING Sakura D3 CS Sport 1.5 x 9mm Steel Gear Pin Set - 5pcs - 3RAC-PN1509 supplies hardened steel pins intended for competitive setups where consistent gear location is critical. These pins provide a positive mechanical stop for pinions and spurs, reducing micro movement under high torque.

Materials and service considerations

Made from hardened steel to resist deformation, the pins are suited to frequent disassembly for tuning. Inspect seating faces for burrs and confirm bore alignment to avoid inducing runout into the drivetrain.

Setup recommendations for tuners

When trimming gear mesh or changing pinion size, verify the pin sits flush and does not interfere with bearing fits. For high RPM applications, recheck retention after a short run-in period to confirm there is no movement.