Type:Brushless Inrunner
Size:540
Bearings or Bushings:Two 5 x 13 x 4mm Bearings
Voltage:4.5V-12.6V
RPM/Volt (Kv):2400Kv
Resistance (Ri):26.5+/-2.5
Cells:4-9 cells NiMH/NiCd 1-3 cells LiPo/LiFe
Weight:5.22 oz (148g)
Overall Diameter:1.41 in (35.8mm)
Shaft Diameter:0.20 in (5mm)
Shaft Length:0.59 in (15mm)
Overall Length:1.97 in (50mm)