LRP X12 sintered rotors
LRP have released two new sintered tuning rotors as an extra option for everyone who uses the successful X12 modified or X12 Stock Spec brushless motor. Available in 12.5mm and 13.0mm, a precision balanced rotor with new special black shaft and titan coated magnet will boost the efficiency and power performance of your brushless motor to a completely new level.
Source: LRP [lrp.cc]