This is Novak's Ballistic Crawling Hand-Wound Stators -- 13.5T (#S6613), 17.5T (#S6617), 18.5T (#S6618), 21.5T (#S6621), and 25.5T (#S6625).
Each Ballistic motor features interchangeable wound stator construction. By unscrewing the main screws, the motors’ solder tab and sensor assemblies can be easily removed to leave only the stator, which can be replaced with many different motor wind options. These replaceable hand-wound stators create countless racing options for racers looking for a cost effective way to change a motor's turn count.
One Hand-Wound Stator
Each kit includes:
Kv readings are measured with a standard 12.3mm sintered rotor (Novak #5941). Wire color shown may differ.
For directions on how to replace your Ballistic wound stator, please view the Novak Video How to Replace a Wound Stator