THIS MOTOR IS HAND BUILT FROM SCRATCH, ALL SCREWS ARE MEDIUM LOCTITED IN PLACE(WONT BE HARD TO REMOVE SCREWS IF NECESSARY BUT THEY WONT VIBRATE OUT)ALL HARDWARE(COPPER IN THIS BUILD) IS ALIGNED ALSO BEARINGS ARE ALIGNED(BEARINGS ON BOTH ENDS),CAN WAS STRAIGHTENED  AND EVERYTHING IS TRUE AND WILL STAY IN PLACE !! THE MAGNETS ARE PROSLOT MEGATRON 3s,I SPUN THIS ARM WITHOUT THE SPRINGS AND BRUSHES  AND WHEN IT COMES TO A STOP THE ARM ROCKS BACK AND FORTH REAL NICE,THESE ARE POWERFUL MAGNETS,THE ARM IS PROSLOT GROUP X -12(SPECIAL)(.480 DIA,42 DEGREE),BALANCED AND TRUED,PROSLOT BRUSHES(YOU WILL STILL NEED TO BREAK THIS MOTOR IN ON YOUR POWER SUPPLY OR THE TRACK TO GET ITS FULL POTENTIAL) ALSO PROSLOT SPRINGS, RED ANODISED SPRING CUP ON POSITIVE SIDE OF MOTOR !!THIS IS A POWERFUL MOTOR AND I THINK IT WILL WIN ALOT OF RACES  IN THE GROUP 12 BRACKET !!!! ALOT OF WORK WENT INTO THIS MOTOR !!! EVERY PART ON THIS MOTOR IS BRAND NEW !! KEEP AN EYE OUT FOR MORE OF THIS MOTOR DESIGN !! CHECK IT OUT,ITS REALLY NICE !!!! YOU WONT FIND A BRAND NEW MOTOR OF THIS QUALITY WITH DOUBLE BALL BEARINGS THIS CHEAP ANYWHERE ON THE INTERNET,THIS IS AS CHEAP AS I CAN SELL IT AND STILL MAKE A SMALL PROFIT !!!! ALSO IF YOU WANT ME TO BUILD YOU A MOTOR,CAR OR CHASSIE SEND ME AN EMAIL !!