Spec 12.5mm rotor for the most torque. This is the highest torque rotor for our spec motors.
Not that bad
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High Quality 440 stainless steel material used for these bearings. 2pcs to replace your current motor bearings.
12.3mm Mod Rotor
12.5mm Mod Rotor
12.5mm Spec Rotor. This rotor comes standard with our Spec motors.