Tenho 2 combos novos na caixa: R$250 cada sem choro, tá mais barato que lá fora!
This is the DuraTrax 3900kV Brushless Power System by castle

FEATURES: Upgrade from stock brushless or brushed systems on 1/10 scale 2WD
off-road vehicles
Some of the vehicles this system is compatible with include, but are
not limited to the DuraTrax EXT2 and Evader DT, Associated SC10
and B4.1 Buggy, HPI Blitz SC, Traxxas Slash SC, Rustler and Bandit
Sensorless ESC's programmable features include: Brake/Reverse Type,
Brake Amount, Reverse Amount, Punch/Traction Control, Drag Brake,
Dead Band, Voltage Cut Off and Motor Timing (ESC can be programmed
manually, with the Castle Field Programming Card, or through the
Castle Link software interface)
Four-pole 3900kV motor delivers more torque with greater efficiency
120-day limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: 3900kV Brushless Motor, Element ESC, Connectors and Instructions
REQUIRES: Pinion gear of modeler's choice
Throttle set-up
SPECS: Motor-
Dimensions: 1.42 x 1.85 in (36 x 47 mm)
Weight (with wires): 6.54 oz (185.4 g)
Voltage Input: 2S max
Poles: 4
Wires: 13AWG silicon, 6.89" (175mm)
Shaft Diameter: 0.125" (3.175mm)
Connectors: 4 mm male bullet connectors
ESC-
Dimensions: 1.81 x 1.38 x 0.79 in (46 x 35 x 20 mm)
Weight: 2 oz (56.5 g)
Voltage Input: 2S-3S LiPo (7.4V-11.1V); 6-10 NiCd/NiMH (7.2V-12V)
BEC: 3A @ 2S input
Current Rating: Up to 100A
jxs 06/06/11
COMMENTS: Per Castle Creations- The throttle always needs to
be in the 50/50 mode, NOT 70/30. Some 27Mhz radios may
have trouble getting into the manual programming mode.