CNC precision would .518 Tri-Star arm with the new ultrialight Ultra can and .450 long Ultra magnets which are lighter in weight with no loss of torque due to efficient magnet design and improved magnet material. Magnets are epoied in place and ID ground, bearings are align reamed hoods are deburred before GOLD plating which is used for loweest contact resistance. Hoods and enbell bearing are aligned and epoxied into place. Can bearing is aligned and soldered into place. Motor is completely broken in for 40 minutes and ready to race.