Kyosho LA427-80 Spur Gear 48P 80T for LAZER ZX series  [KY-LA427-80]

Spur gear for LAZER ZX

This Kyosho LA427-80 spur gear is a dedicated replacement part for the LAZER ZX series, presented as an RC-scale drivetrain component with a 48 pitch, 80-tooth profile and ZX7.5 designation. It serves the mechanical role of transmitting power from the motor pinion to the gearbox output in model cars, and is intended for hobby use within LAZER ZX-compatible setups rather than any real vehicle application.

In practical terms the part is used when replacing a worn spur or when changing gear ratios during tuning. The 48P 80T specification determines the mesh compatibility with matching 48P pinion gears, so confirm pinion pitch and tooth count before fitting. When installing, check for correct backlash across the gear face, ensure the gearbox bearings and shaft alignment are secure, and rotate the drivetrain by hand to verify smooth engagement before powering the system.

For tuning, swapping to a different spur tooth count changes final drive ratio and vehicle response: a larger 80T spur generally increases acceleration smoothness while lowering top speed relative to smaller-tooth options, depending on pinion selection and motor characteristics. Use this part as part of measured gear changes rather than as a standalone performance modifier, and always inspect for burrs or damaged teeth during replacement.

As an RC-scale spare part, the LA427-80 provides direct replacement capability and a clear tuning function for LAZER ZX owners focused on drivetrain reliability and ratio adjustments.