LRP XTEC X12 Sintered rotors
LRP have released 3 new sintered rotors for the XTEC X12 brushless modified motor and feature magnets graded on a new and strengthened shaft for optimized motor performance. The 12.0mm rotor is optimized for maximum top speed with a linear throttle feel and is the preferred choice of the LRP team on big tracks with long straights. The 12.5mm is optimized for efficiency and mid-range torque and this rotor is the perfect starting point for every setup on every track and has already been successful by winning the 2008 1/12th IFMAR World Championship and 2009 1/12th European Championship. Finally the 13.0mm rotor is optimized for maximum torque and power and recommended for short tracks with many acceleration parts or on tracks that are tough on run time.
Source: LRP [lrp.cc]