The TRX-4M® Brushless Power System gives you up to 50% more speed, more crawling torque, and greater precision than brushed power systems. Rip wheelies in your monster truck or navigate a technical crawling course in your custom High Trail® rig. The new TRX-4M Brushless Power System gives you the best of both worlds!

TRX-4M Brushless Power System (6250) Motor
Brushless Outrunner Motor
At the heart of the system is the all-new 3350 Kv brushless outrunner motor. Designed for 2s LiPo power, the brushless motor offers exceptional torque and low speed control to climb over any obstacle. In the open, the motor delivers high-rpm performance for dramatically improved speed and wheelie-popping power. A black high gloss can with laser etching gives the motor a striking appearance.

TRX-4M Brushless Power System (6250) ECM
Brushless ECM
The new brushless ECM offers all the same great features as the standard ECM, but with even more compatibility. The integrated lighting control module and receiver maintain all existing functionality with existing Pro Scale® light kits and works with both TQ and TQi transmitters. New field-oriented control (FOC) programming allows the ESC to monitor the motor’s position for ultra-precise control. The brushless ECM offers two servo output ports and two Pro Scale lighting ports and even uses the same battery connections and mounting bosses for true plug-and-play capability.

Brushless Power System Features:
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Brushless outrunner motor
More torque and low speed control than conventional designs
3350 Kv
Laser-etched can
Includes 11-tooth pinion gear
Brushless ECM
Retains all standard ECM features including Pro Scale lighting controls
Field Oriented Control (FOC)
Compatible with 2s LiPo power
Works with both TQ™ and TQi™ transmitters
Three drive modes:
Sport (100% FWD, 100% Brake, 100% REV)
Trail (100% FWD, 100% Brake, 100% REV, Trail-Tuned Brake on Neutral)
Crawl 100% FWD, 100% Instant REV, 100% Brake on Neutral)
Same footprint and mounting points
True plug-and-play compatibility
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TRX-4M Full Accessory Chassis
Easy To Install

The TRX-4M Brushless System is quick and easy to install. The ECM uses the same mounting bosses as the standard system with no modifications required. The system works with all existing TRX-4M parts and accessories including Pro Scale LED light kits and high/low two-speed transmissions. To get the most performance from your truck, consider the upgrades listed below for improved compatibility and toughness.