REEDY SONIC 540-M4 MOD ROTOR 12.5 x 7.25 x 25.3 (used in DE)

Fine-tune your Reedy Sonic 540-M4 motor for varying track conditions and applications with a powerful assortment of optional rotors. Each rotor is laser etched with its specification and part number for easy identification and technical inspection.

This is also used in the new M4 DE (Driver Edition) range of motors for improve throttle feel and consistency.
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