Made for the Kyosho Jet Stream 600 series, the Kyosho BPC4050 kit includes four 4x5x9mm collars to keep propellers concentric with the shaft. These collars help maintain steering accuracy and consistent thrust during runs.
The 4x5x9mm specification ensures a precise seating that reduces vibration and improves responsiveness. Correct collar fit translates to steadier tracking and better control at varying speeds.
Manufactured to withstand repeated use, these collars are suitable for regular model upkeep. Replace collars showing wear to maintain drivetrain precision and avoid performance degradation.
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