Hitec 7xxx series are awsome,JR 9100 & 9000 series are also awsome in the "T" version & both brands run about the same price.Just pick the model according to speed & torque you want.I run both & love both but have had to warranty many more JR brand than Hitec but they both work well & last long.The ones I have that have lasted the longest is the Hitec 5955 but that has been updated in the 7xxx series & their beter so you choose.