SinTech 25kw controller

SinTech 25kw controller

SKU: 1

On the stock Sur-Ron bike battery controller upgrade gives additional ~2000watts or +20-30% power of acceleration as well as top speed/range improvements and features such as reverse gear, regenerative braking and customizeable power profiles. Controller kit comes with installation instructions as well as setup instructions and sur ron connectors are preinstalled to simplify installation process.


Accepting 30 days preorders! Controller price excludes display and shipping. If you would like a kit with display, please let us know in your email at



Controller plug n play kit comes with Sur-Ron connectors preinstalled, phase wires hardware (bolts, nuts, heat shrink) and a regenerative braking throttle. Controller can be set via computer software using bluetooth connection. Controller can be set up for the customer remotely by SurRonshop team when controller is installed. Sintech works with standard Sur-Ron X speedometer display and recognizes SurRon sport/ep switch, kickstand, brake, tilt and fall safety sensors.


SinTech controller comes with 1-year warranty: in case of a failure where power board inspection shows no signs of controller abuse, customer will receive a controller repair service & backwards standard shipping for free.


Technical specifications:

  • Max power: 25000w
  • Nominal power: 17000w
  • Voltage range: 60-106v (up to 25s battery compatible)
  • Max battery current: 300a
  • Max phase current: 450a (up to 500a with warranty loss)
  • Working temperature: -20+45 Celsius
  • Efficiency: 95-97%
  • Digital outputs: 3
  • Analog outputs: 2
  • Position sensor interfaces: SSI. UVW, AB
  • Communication interfaces: RS232, CAN
  • Supported motors: PMSM, ACIM, DC
  • Control modes: FOC, BLDC. Sensorless FOC
  • Protection functions: Phase current, supply voltage, overheating of the power unit, overheating of the load, phase failure.


Additional heatsink option

Optional extra heatsink improves heat dissipation of the Sintech controller. With a 6 times larger surface area, the heatsink ensures stable performance in difficult ride conditions with no air cooling support: high-grade uphills, low speed climbs and other hard enduro performance. 


SinTech controller for Sur-Ron links:

1) Controller installation instructions

2) Computer software and setup instructions, connection schematics


3) Controller step-by-step setup instructions


Warning! In case you run a discharge-bypassed battery management system, the RED precharge control wire of SinTech controller has to be connected into the Sur-Ron circuit breaker according to connection schematics.


Shipping options:

1) Standard shipping (7-30 days average arrival time, costs 80$ for controlller & 15$ for extra items)

2) Expedited EMS shipping (7-14 days average arrival time, costs 115$ for controller & 25$ for extra items)

3) DHL express shipping (2-4 days average arrival time, costs around 190$ depending on package size and weight)
DHL is a reliable transportation company that delivers on time. If you want your products to arrive quickly we highly recommend picking this option.

Please keep in mind that packages can get delayed due to covid impact on the worldwide shipping, but all our shipments eventually arrive. We personally track every package and inform when it reaches destination country for customers’ convenience. 


Please clarify items availability with us before you place an order. We don't accept orders through website due to comission fees. Feel free to email us at or send a message on facebook [] to proceed with the order or ask a question!


Do not hesitate to contact us for discount information, multiple orders get up to 200$ off!


You can order some of our products on eBay: []


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    PriceFrom $1,075.00
    Excluding Sales Tax