The Kyosho LA427-80 spur is created for LAZER ZX series vehicles and features a 48 pitch, 80-tooth profile with the ZX7.5 marking. As an RC-scale drivetrain component it conveys torque from the motor pinion to the gearbox output and is supplied for hobbyist installations rather than for any full-size vehicle application.
Use this gear to replace a worn spur or when you want to alter gearing ratios for different driving conditions. The 48P 80T specification means you must match the spur with a 48-pitch pinion; confirm both pitch and tooth count before fitting. When installing, set correct backlash, check bearing condition and shaft alignment, and manually rotate the drivetrain to ensure smooth engagement prior to switching on power.
Fitting an 80-tooth spur changes the final drive ratio, generally producing smoother acceleration and a reduction in top speed compared with smaller spurs, subject to pinion choice and motor characteristics. Approach gear swaps as part of broader tuning adjustments and always inspect the gear teeth for any damage during replacement.
The LA427-80 serves as a dependable replacement and a straightforward gearing option for LAZER ZX owners focused on drivetrain consistency and tuneable ratios.
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