12.5mm Spec Rotor. This rotor comes standard with our Spec motors.
12.5mm high torque rotor. This is the standard rotor which ships with our 17.5, 13.5 and 21.5 Spec motors.
Not that bad
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12.5mm Mod Rotor
High Quality ceramic bearings. 2pcs to replace your current motor bearings.
Replacement stator for 17.5 motor.
Spec Rotor to gain more RPMs.