Novak Electronics’ never-ending search to bring the racers the absolute highest quality components and material has brought racers the next step in motor tuning: Novak's 12.5mm High-Torque Neodymium Tuning Rotor (#5955). The 12.5mm rotor uses the same high-strength Neodymium material as the original Novak rotor with a larger diameter. 

The 12.5mm rotor will increase the torque, and improve the natural push brake and drag braking strength of the Ballistic, Club, and Velociti/SS Pro brushless motors. Novak’s 12.5mm rotor is recommended for all applications, and meets the maximum dimensions for spec-class racing.
FEATURES:

Larger 12.5mm diameter rotor for higher torque and braking characteristics

High-strength sintered, Neodymium magnet for maximum motor acceleration, braking power and performance

Nickel-plated for stronger surface and resistance to corrosion
Recommended for all racing and non-racing applications
Compatible with all Novak 540-size brushless motors: Ballistic Racing, Ballistic Spec, Ballistic High-RPM Spec, Premium Ballistic, and Club motors. Also compatible with the Velociti Racing and SS Pro series motors that have an oversized bearing.
Maximum allowed diameter to meet ROAR and IFMAR specifications
Developed and manufactured to Novak's strict standards
Magnetized and 100% tested at the Novak factory in Irvine, California

SPECIFICATIONS

Diameter: 12.5 mm
Output Shaft: 1/8 inch (accepts all existing pinion gears)
INCLUDES:

Rotor in a protective tube
Installation instructions