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MPI Hobby is exclusively designated for wholesale customers. Retail customers please visit www.buddyrc.com to place orders. Thank you.
MPI Hobby is exclusively designated for wholesale customers. Retail customers please visit www.buddyrc.com to place orders. Thank you.

Castle Creations Mamba Micro X2 16.8V WP Sensored ESC with 1406 2850KV Combo

Original price $169.95 - Original price $169.95
Original price
$169.95
$169.95 - $169.95
Current price $169.95
SKU CC-A171-03

The Mamba Micro X2 represents an upgraded version of our popular Mamba Micro X ESC. This innovative ESC introduces several enhancements, including an extended maximum input voltage of up to 4s. Notably, we've incorporated DATA LOGGING and our cutting-edge CRYO-DRIVE™ TECHNOLOGY, which optimizes ESC performance, ensuring it runs cooler and more efficiently, especially during partial throttle operation. Like its predecessor, the Mamba Micro X2 maintains its waterproof* feature and offers SENSORED MOTOR SUPPORT.

This ESC is a perfect choice for builders who prioritize weight savings or have limited space, making it suitable for low-speed crawling or trail running applications in vehicles weighing up to 8lbs when powered by 2s or 3s batteries. It can also accommodate slightly more aggressive setups, such as rock racing and extended hill climbing, in vehicles up to 4lbs. For optimal performance, we recommend Castle's "Slate" crawler motors (combos available) and the Holmes Hobbies Puller Pro 540 "Stubby" (≤ 2700kv) motors.

A note worthy update as of June 14, 2023: The internal BEC (Battery Eliminator Circuit) is now reinstated! All Mamba Micro X2 ESCs produced on or after June 2023 come equipped with the internal BEC. To identify the manufacturing date, check the side of the ESC box or the ESC's receiver wire. ESCs manufactured between August 2022 and May 2023 do not include an internal BEC but come with an external 10-amp CC BEC; for more details, click here.

For those seeking a more aggressive setup in a heavier vehicle, particularly for rock racing and extended hill climbing, we recommend using the Mamba X ESC. Similar to its predecessor, it offers enhanced features tailored for rock crawling, including an active drag brake and drag brake ramp.

Key Features:

  • Accepts Input Voltage ranging from 2S to 4S
  • Maintains Waterproof Design
  • Supports Sensored Motors
  • Convenient Transmitter Programming with six adjustable settings
  • Additional settings and software updates accessible via Windows®-based Castle Link software and USB adapter (coupon included with purchase) or the Castle Link App with a B-LINK Bluetooth Adapter (available separately)
  • Telemetry Ready, compatible with S.BUS2 Telemetry Link and Futaba T4PX, T7PX, and T7PXR transmitters
  • Auxiliary Wire Functionality for "on-the-fly" adjustments, such as Max Power and Max Brake
  • Audible Alerts to notify you of potential calibration issues and error conditions
  • Designed and manufactured in Olathe, Kansas, and backed by a 1-year warranty

Mamba Micro X2 ESC Purchase Includes:

  • Mamba Micro X2 ESC with 4mm Connectors
  • Sensor Harness
  • Coupon for a complimentary Castle Link USB adapter
  • Driver's Ed and Quick Start Guide
  • Castle Decals

Technical Specs Mamba Micro X2 ESC
Input Voltage Range: 2S-4S LiPo (16.8V Max) *2S-3S with included motor
BEC Specifications: 2A Peak, 5.5v or 7.5v (5.5v default)
Operating Environment: Waterproof* design allows for use in nearly any environment; included CC BEC is not waterproof.
Brake: Proportional
Reversible: Yes, but may be disabled
On/Off Switch: Yes, waterproof
Cooling Fan: Coming soon, uses 25mm size fan
Size (L x W x H): 41.6 mm x 29.4 mm x 21.3 mm (1.64" x 1.16" x .84")
Weight (with wires): 1.66 oz / 47 grams
Connectors: 4.0 mm bullets
Items Needed for Operation: Battery Connector required: Castle 4.0mm Polarized Connectors, Deans Ultra Plugs and XT60 are recommended.
Product Use Statements:
  • Applying voltages higher than 16.8 volts will cause irreparable damage to your controller, voiding your warranty.
  • Recommended battery capacity for 1:18 scale vehicles is 1500mAh. We recommend using 30C continuous discharge or higher LiPo batteries (or high quality 25C batteries such as Traxxas® Power Cell).
  • Mamba Micro X has 4.0mm bullet connectors on the motor wires and the battery input wires are bare. You must add the connector of your choice to the battery leads. We recommend a high current connector rated for at least 40 amps.
Programmability: Additional settings and software updates available via Windows®-based Castle Link software and USB adapter (coupon included with purchase) or the Castle Link App for Android or iOS and a B-LINK Bluetooth Adapter (sold separately)
Telemetry Link Capable: Yes, with Castle Creations Telemetry Link for S.BUS2 and Futaba T4PX and T7PX Transmitters.
Tech Notes:
If running on 4s, and using two 2s LiPos in series, please refer to this BEC wiring diagram.

*Although the Mamba Micro X2 is waterproof, it is not intended for operation while completely submerged in liquid. They can corrode when exposed to corrosive materials, such as salt water. Always rinse the ESC with clean water after exposure to corrosives or dirt. While the controller may be waterproof, we suggest users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.


Technical Specs 1406-2850Kv Sensored Motor
Input Voltage Range: 2S-4S LiPo
Kv: 2850
Max. RPM: 100,000
Size: Length: 49.5mm
Diameter: 36mm
Weight (w/wires): 197 g / 6.9oz
Shaft Size: Length: 15mm
Diameter: 1/8" (3.17mm)
Mounting Hole Specifications: M3 @ 25mm
Cooling Fan: Optional - Coming Soon
Connectors: 4mm male Castle Bullet Connectors
Application Guidelines: Ideal for 1:10 scale low speed rock crawlers/trail runners on 2S-3S weighing less than 8lbs. Can also be used in more aggressive setups in lighter 1:10 scale touring cars, stadium trucks or buggies weighing up to 5lbs.
Max. Recommended Vehicle Weight: 8lbs when used for low speed/moderate driving style like rock crawling and trail running;
5lbs for more racing and aggressive driving styles.
Tech Notes:

Running modes: SMARTSENSE™, Sensored, Sensorless with Castle sensored capable ESCs.

Water Resistant Design: The sensor board is coated with silicone conformal coating to protect the sensors from moisture. The sensor connections are not water resistant; water can cause signal loss which could result in loss of sensored capabilities. Castle recommended applying dielectric grease to the outside of the sensor wire connections after installation of the wire. Routine maintenance is recommended after running in wet conditions. Please refer to this document for running and maintaining motors in wet environments.