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ParkZone Ka-8 Plug-N-Play Electric Sailplane
ParkZone Ka-8 Plug-N-Play Electric Sailplane
 MAP: $159.99 
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Viper R/C Copperhead ESC & VX4.39 4-Pole 540 Sensorless Brushless Motor Combo (3900kV)
[VIP6VSVX43901]

Average rating: 4.4 of 5 Stars!

Viper R/C Copperhead ESC & VX4.39 4-Pole 540 Sensorless Brushless Motor Combo (3900kV)
Displaying 1 to 8 (of 8 reviews) Result Pages:  1 
Lee Phillips - Rating: 5 of 5 Stars! Verified Owner Tuesday, July 17, 2012
GREAT! Ran this system in my SC10RS w/ 20T/48. Fastest truck at the track. No problems with it. Just getting back into the hobby so I wasn't comfortable with spending alot of money but with this type of performance, i really don't see why people do. Key to this hobby>>>>>RESEARCH FIRST!
2 of 2 customers found this review helpful.
james mims - Rating: 5 of 5 Stars! Verified Owner Saturday, May 11, 2013
This combo is fast and smooth will be buying the 5150 kv next week!
Russell KOTZUR - Rating: 5 of 5 Stars! Verified Owner Monday, April 29, 2013
Works great in xxx sct, in fact had to turn throttle epa down because it was too fast for my skills at full speed.
Chris Elson - Rating: 5 of 5 Stars! Verified Owner Sunday, March 31, 2013
Very strong and worth the money. I put it in my son's torment and its smoking fast only on the 2nd esc setting. I'd definitely buy another viper.
Steven Bittick - Rating: 1 of 5 Stars! Verified Owner Saturday, August 11, 2012
Plugged it in and it burned to the ground, almost took my Wraith with it, it did however melt my Spektrum receiver. STAY AWAY!!!!!
1 of 2 customers found this review helpful.
william king - Rating: 5 of 5 Stars! Verified Owner Tuesday, June 19, 2012
Excellent product I installed it as a replacement for my velinon system that went bad on a 2wd slash. with the 23 tooth pinion and 3s lipo its unbelievably fast. And has excellent brakes much more precise than the velinon which always wanted to lock up on hard stops. On the stock gearing I can balance the truck on two wheels until I run out of road. Great price for a great system. Had one Small issue with setup the polarity was reversed on the motor simply swapping only two wires to the esc fi[More…]
Dustin Hamilton - Rating: 5 of 5 Stars! Wednesday, May 16, 2012
This combo is bad a**!! Run's just about as smooth as a sensored system. Buy it, try it, love it!!
Ryan Coombes - Rating: 2 of 5 Stars! Verified Owner Saturday, June 16, 2012
Performance on 3s was quite poor, tested in a Savage XS on the same gearing I tried this system (3900kv 4 pole) back to back with the traxxas Velineon (3500kv 2 pole). The traxxas system had more punch, more torque and a higher top speed. The brakes in the copperhead are aweful as well, unless you have the tuning gauge you cant get enough brakes, the first 4 profiles all had poor brakes and if you like to pulse the brakes on and off the copperhead thinks you want reverse and will trow it int[More…]
0 of 4 customers found this review helpful.
Displaying 1 to 8 (of 8 reviews) Result Pages:  1 
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Viper R/C Copperhead ESC & VX4.39 4-Pole 540 Sensorless Brushless Motor Combo (3900kV)
GREAT! Ran this system in my SC10RS w/ 20T/48. Fastest truck ..
5 of 5 Stars!
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