Justock Club Spec ESC - LEGACY

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New generation XR10 JUSTOCK Available

ROAR | TOUR | USVTA Approved

Very Popular | was  $61.50
Approved by ROAR  / USVTA Regulation
Brushless ESC for 1/10 & 1/12 Competition
1/10 & 1/12 Oval Racing 
    • ROAR Approved
    • USVTA Approved
    • Suitable Car:  1/10, 1/12 on-road or off-road SPEC race (Zero timing race).
    • 1/10 rock crawler pro race.
    • Suitable Motor:  With 2S LiPo or 4-6 cell NiMH, 1/10 on-road>=8.5T, 1/10 off-road>=11.5T 
    • With 3S LiPo or 7-9 cell NiMH, 1/10 on-road>=13.5T, 1/10 off-road>=17.5T    
    • Black Edition 81020001, Blue Edition 81020000Easily programmed with the SET button, LED Program card, Professional LCD Program Box and USB Link Software.
    • ESC firmware can be updated through the USB adapter in the LCD Program Box.
    • Also suitable for rock crawler pro races when using “Crawler” working mode. 
  • Output: Continuous 45A, burst 260A.
  • Input: 4-9 cell NiMH/NiCd or 2-3S LiPo.
  • BEC: 6V@2A linear mode built-in BEC.
  • Resistance: 0.0006 Ohm.
  • Motors Supported: Sensored and sensorless brushless.
  • Cooling Fan: 5V  * Note #1
  • Size: 33mm(L) * 28mm(W) * 31mm(H) (Cooling fan height included)
  • Weight: 59g (The weight of cooling fan not included) 

* Note #1: The cooling fan power supplied by built-in BEC.  


The ESC can be loaded with many different firmware versions by user.
The options in italic in the above table are the default settings of the ESC.
(* The programmable items and the default settings maybe changed in different firmware versions without  prior notification.)  

Get a combo and save ::::
Combo PN ESC
Main Application
Combo JS1 81060010 (Blue) JUSTOCK ESC
XERUN 8.5T-SD (4000kv)
LED Program card
Popular for super stock competition 
in general
Combo JS2 81060020 (Blue) JUSTOCK ESC
XERUN 10.5T-SD (3300kv)
LED Program card
ROAR SPEC race in US
1/10 off-road competition
1/10 Drift car pro race
1/10 M car pro race
Combo JS3 81060030 (Blue) JUSTOCK ESC
XERUN 11.5T-SD (3000kv)
LED Program card
Popular for stock competition 
in Asia
Combo JS4 81060040 (Blue) JUSTOCK ESC
XERUN 13.5T-SD (2500kv)
LED Program card
Super stock races in US & Europe
1/10 off-road competition
Combo JS5 81060050 (Blue) JUSTOCK ESC
XERUN 17.5T-SD (1900kv)
LED Program card
Popular for stock competitions
in US & Europe
Combo JS6 81060060 (Blue) JUSTOCK ESC
XERUN 21.5T-SD (1600kv)
LED Program card
ROAR SPEC races in US
Rock crawler pro races