Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC

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Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC
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Price: $129.95
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The Castle Sidewinder 8th 1/8 Scale Sensorless Brushless ESC is an 1:8 scale sport level ESC that is perfect for entry level weekend bashers, or serious road warriors seeking the benefits of an affordable brushless upgrade. Capable of 2-6S LiPo operation with an 8 amp peak BEC, the Sidewinder 8th is the perfect upgrade for 1:8 scale buggies, truggies and other vehicles weighing up to 11 lbs that need more power. It is also a great upgrade for some 4WD short course trucks running on 3S or 4S.

  • 2s - 6s LiPo (25.2V) use in vehicles up 11.lbs. with battery, ready-to-run.
  • Sensorless motor operation.
  • Large 6.5mm female motor bullet connectors (male connectors sold separately)
  • Waterproof design ESC and splash resistant 30MM fan*
  • Powerful 5.5 volts fixed, 8 amps Peak BEC
  • LED error codes for common error conditions
  • Smooth sensorless startups
  • Convenient transmitter programming for nine common adjustable settings
  • Full compatible with the Castle Link Programming Suite to modify settings and download software updates available via Windows®-based Castle Link software and USB adapter (purchased separately), Field Link Card  (sold separately), or the Castle Link iOS App and a B-Link Bluetooth Adapter. (sold separately)
Input Voltage Range: MIN: 2S LiPo - MAX: 6S LiPo (25.2V)
BEC Specifications: 5.5V fixed, 8A peak
Operating Environment: Waterproof* design allows for use in nearly any environment.
Brake: Proportional
Reversible: Yes, but may be disabled for racing.
On/Off Switch: No
Cooling Fan: Yes, factory equipped (30mm), fully removable** (see Product Use Statements below)
Length: 2.45" (62.2mm)
Width: 2.20" (56.0mm)
Height: 1.33" (34.0mm)
Weight (with no battery connector): 3.52 oz. (100g)
Connectors: 6.5mm female bullets for motor connection.
Items Needed for Operation: Battery Connector required, 6.5mm Castle Connectors are recommended.
Application Guidelines: Intended for up to 6S (25.2 Volt) operation in vehicles weighing less than 11 lbs, with batteries, ready-to-run.
Recommended Motors: Castle 15xx series motors, 1415-2400kv (Bullet connector change from 4mm to 6.5mm required)
Max. Recommended Vehicle Weight: Up to 11 lbs, with batteries, ready-to-run with batteries
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (purchased separately) and freely downloadable Castle Link Windows software, a Field Programmer (sold separately) or the Castle Link iOS App and a B-Link Bluetooth Adapter (sold separately).
Telemetry Link Capable: No

Product Use Statements:

  • Although Sidewinder 8 is waterproof, it is not intended for operation while completely submerged in liquid. Always rinse the ESC and motor with clean water after exposure to corrosives or dirt. While the motor and 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.
  • The cooling fan must be removed prior to driving in wet conditions. It is not waterproof.
  • Sidewinder 8 ESC
  • User Guide and Quick Start Guide
  • Castle decals

This product was added to our catalog on October 11, 2018

Sunday, Jul 12 2020 (about 2 years ago)
Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC
This ESC is very powerful and very reliable. I have only used 4-cell batteries. I would compare it to the Mamba Monster X. This might be rated for 11 lb offroad vehicles while the monster x is rated 15 lbs, but i own both and they feel equally powerful in my 11 lb 1/8 scale truggy. I have to turn on 30% punch control on both to keep them on the ground. (punch control is power reduction)

I have submerged this ESC in mud, and went on racing, on several occasions.
This ESC is sensorless but it has a significantly smoother takeoff than a traxxas vxl sensorless ESC. It has no power switch which is a good thing to most people, less sophisticated usually means more reliable- and in this case it certainly is rock solid. I removed the top of my case and i can see the entire circuit board/device was submerged in clear epoxy during manufacture, making it completely waterproof except for the 3 bullets for motor plug-in and 5 pins for plugging in the receiver and fan wires- that connection is to be dielectric-greased upon installation for a very reliable waterproof system.
I have looked inside my mamba monster x to compare construction and they look extremely similar. the exact same technique is used to waterproof what looks like the exact same circuitry plus 1 row of chips- the ones that give motor sensor capabilities.
I am left wondering if this sidewinder 8 is actually able to handle a 15 lb vehicle, rather than just 11 lb as listed.
In any case, this ESC is only about 100$. You can get this ESC combined with a 150$ 1515 2200kv sensored motor for 180$. If you are interested in a 2200kv motor at all, buy that combo! The motor full price+ this 100$ powerhouse ESC for +30$ These arent sale prices- i got my first combo on sale for 150$
Verified Owner
Wednesday, Apr 14 2021 (about a year ago)
Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC
I'm knocking a star off for the lack of an on/off switch.

Overall, I like Castle speed controls. They are at a decent budget price and great for either a back up or a general fun R/C. This one is running a 2400kV 550 motor on 2S in a 1990 Tamiya King Cab. I don't expect any issues, and this work great in my setup.
Verified Owner
Saturday, Mar 5 2022 (7 months ago)
Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC
Why dont these ESC have an ON/OFF switch ????
Fans are erratic..
Total Trash
Verified Owner
Thursday, Mar 5 2020 (about 2 years ago)
Castle Creations Sidewinder 8th 1/8 Scale Sensorless Brushless ESC
Fishing for compliments gets you one star every time.