This is the 21.5 Turn Reedy Sonic Competition Brushless Motor from Associated.

FEATURES: For 1/10 scale racing
          Built to ROAR/EFRA/IFMAR specs
          Balanced high-strength sintered rotor supported by dual ball bearings
            for maximum RPM and reliability
          Adjustable timing and rotor interchangeability allows fine tuning for
            different applications and track conditions
          Handles 6-cell NiMH or 2S LiPo cells
          Strategically placed air holes for maximum cooling
          Warranty: Due to the competition nature of this product, this motor
            is warranted to the original purchaser to be free from defects in
            material and workmanship at the date of purchase.

INCLUDES: 21.5 Turn Reedy Sonic Brushless Motor with Sensor Wire and
            Instructions

REQUIRES: Pinion gear for specific vehicle and application

SPECS:    Cells: 2S LiPo, 6-cell NiMH
          Diameter: 1.4" (35.8mm)
          Length: 2.1" (52.9mm)
          Shaft Diameter: 0.12" (3.17mm)
          Weight: 6.17 - 6.52oz (175-185g)

                                                                   jxs 07/25/11
                                                                         ir/jxs