SKU: 32129077611

Hobbywing Xerun V2.1 Brushless ESC 120A - HW81020171

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Description

Hobbywing Xerun V2.1 Brushless ESC 120A - HW81020171Hobbywing Xerun V2. 1 Brushless RC Speed Controller, ESC 120A The XERUN V2. 1 is an excellent brushless speed controller with a wide range of features. Features: Compatible with most sensorless and sensored brushless motors. Large current endurance. Most effective cooling structure. Excellent start up, acceleration and linearity features, best control feeling. Plenty of programmable items, suitable for various chassis, tyres and racing tracks.

Hobbywing Xerun V2.1 Brushless RC Speed Controller, ESC 120A 

The XERUN V2.1 is an excellent brushless speed controller with a wide range of features.

Features:
Compatible with most sensorless and sensored brushless motors.
Large current endurance.
Most effective cooling structure.
Excellent start-up, acceleration and linearity features, best control feeling.
Plenty of programmable items, suitable for various chassis, tyres and racing tracks.
Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection.
Internal timing can be changed easily to make the ESC suitable for various motors.
Easily programmed with the SET button, LED Program Box, Multifunction LCD Program Box and USB Link Software.
ESC firmware can be updated through the USB adapter in the LCD Program Box .
Plenty of firmware available for all kinds of competitions.
Standard firmware for MODIFY competition.
Supercharged firmware(with turbo timing) for SUPER STOCK competition.
Zero timing firmware for ROAR SPORTMAN race and other fair races.
Also suitable for rock crawler pro race when using “Crawler” working mode.

Specification:
Current
Continuous: 120A
Burst: 760A

Input * Note #1
4-9 cells NiMH/NiCd
2-3S LiPo

Built-in BEC
5.75V@3A (linear mode)

Resistance
0.0003 Ohm

Motor Supported
Sensored and sensorless brushless motor

Suitable Motor
With 2 Lipo or 4-6 NiMH
1/10 on-road: >=3.5T
1/10 off-road: >=5.5T

With 3 Lipo or 7-9 NiMH
1/10 on-road: >=5.5T
1/10 off-road: >=8.5T

Suitable Car
1/10, 1/12 all competitions
1/10, 1/8 rock crawler

Cooling Fan
5V - HW30860200010

Size
43mm(L) * 36mm(W) * 33mm(H)

Weight
105g

Please Note:
For 4-6 cells NiMH/NiCd or 2S LiPo, the standard cooling fan needn't be changed.
For 7-9 cells NiMH/NiCd or 3S LiPo, the standard cooling fan need be changed to 12V high voltage fan.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 32129077611

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Martin Walyor
Louisville, US
★★★★★ 5
Fantastic product
Size: 8 Fl Oz (Pack of 1)
Works Great, at first didn't believe all the reviews, I've bought 5 chainsaws from one season to the next. After each winter couldn't get them to start. Followed the instructions to flush and let sit for a few days. Every one started and ran great. Hands down, this is a remarkable product for cleaning out blocked fuel systems from sitting all winter would recommend it for all 2 cycle engines and use the stable blend for winter as well as anytime use to prevent fuel spoilage.
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Reviewed in the United States on March 12, 2026
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Wayland Efird
Louisville, US
★★★★★ 5
Efird, a great product
Size: 8 Fl Oz (Pack of 1)
Used this in a Troy Built Garden Tiller, the tiller would stall and hard to crank until we use the Sta Bil Fast Fix, tiller now runs great and does not stall.
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Reviewed in the United States on April 25, 2026
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Amazon Customer
Lake Worth, US
★★★★★ 5
Worked great, saved me hundreds.
Size: 8 Fl Oz (Pack of 1)
I've had issues with the carburetor on my 2003 Honda ATV for years. It has needed cleaned regularly to stay running, and one repair shop wanted over $400 to replace the carburetor. One treatment with STA-BIL and it's running smooth again. Very impressive.
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Reviewed in the United States on May 21, 2026
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Chris Wildy
Lexington, US
★★★★★ 4
Great for 2 cycle, meh for 4 cycle.
Size: 8 Fl Oz (Pack of 1)
This stuff is flat out amazing for 2 cycle small engines, works like advertised. 4 cycle isn't as good, if your engine hasn't ran in years, you'll still have to clean the carb, but it does help some. The 2 cycle oil for one is a lubricant and inhibits varnish buildup (especially a synthetic premium brand), and usually premium oil has a fuel stabilizer in it. Plus if you don't have a float bowl, there's not enough fuel for phase separation. I also use it in my mix for my ultrasonic cleaner when cleaning carbs. Overall a very good product, but understand it's limitations in this modern age of ethanal fuel.
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Reviewed in the United States on April 12, 2026
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G123
Louisville, US
★★★★★ 5
It works well.
Size: 8 Fl Oz (Pack of 1)
Great product that delivers on what it says it does. This won’t fix a mechanical problem or damaged component, but it will fix a stuck float, varnished tank, gummed up jet, or partially blocked emulsion tube.
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Reviewed in the United States on May 14, 2026

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