Long rumored, occasionally seen at trade shows, Castle’s elusive 1/8th scale Monster Brushless ESC is finally available to the public. Castle has used all of their tricks to deliver stunning power for monster trucks and 1/8th buggy conversions.

The Monster handles up to 6S LIPO input (25.2 Volts MAX). It has a switching BEC circuit onboard to provide plenty of power for your receiver and servos. Don’t worry about the amp rating, nothing even comes close to the real world performance of the Castle controllers, and Monster is no exception. We’ve hit 60 mph with RC vehicles that have absolutely no business doing 60 mph. (And we were doing it in a 20 mph zone!)

Monster is designed to keep its cool while it pounds your truck. Castle refused to cut corners on the design or the components, the electronic and thermodynamic fundamentals are right to begin with. Castle then wrings a bit more power out by using a high efficiency heat sink PLUS an integrated cooling fan to make sure you finish the race. Thermals are for the other guys.

Monster ESCs come with huge 6.5mm gold plated bullet connectors for reliable power transfer and simple installation. We’ve even thrown in a Castle Link USB adapter so you can tame the Monster by adjusting the settings using your Windows PC.

Specifications
Cells: 18 NiCad/NiMH 6s LiPo
Continuous: 120 Amps
Resistance: 0.0003 ohms per phase
Brake: Proportional with adjustable curve
Reversible: Yes - with lockout
Low Voltage Cutoff: Programmable
Dimensions: 2.2" x 1.9" x 1.4"
Weight w/Wires:    ESC: 121g
Connector Type:    6.5mm bullet