Help, Sabvaton 72150 to Cro motor

[jokerbike]

Hello all,

We are installing this controller, the bike is a homemade with cro motor, V2 , I believe. The wiring harness is burnt out. I am having trouble with what the awg on the green, blue yellow wire to replace is and no electrical, hardware or bike stores seem to know, they think 10 awg. Here is a photo, just want to know what awg this could be for a cro motor, the mq sabvaton does not get back to me. I guess we have to build our own harness again? Or does Sabvaton or anyone sell these? I don't see it on their site. Also where do we get a correct male 6 pin connector to match the one on controller which is opposite from what we have? We don't want to burn the new controller out. The black controller is the new one.

 

[Portugaline]

This is a similar motor to qs205 50h. They use 10mm per phase. 10awg is about 6mm. I would go 10mm (8awg).

 

[jokerbike]

Thank you, Does it matter if it is aluminum or copper? Thhn wire, right?

 

[AGS]

You should be able to buy a new motor cable harness to save messing around with individual wires.

I have this QS273 harness on my QS205 so it should fit on your cromotor.

The standard QS205 cable isn’t big enough when running high phase amps. And spade terminals certainly won’t cope, so you need to use ring terminals directly from the motor to the controller.

QS 273 Replacement Hub Motor Cable Ebike Stealth Bomber Hall Plugs 800

QS 273 Replacement Hub Motor Cable Ebike Stealth Bomber Hall Plugs 8000W with free delivery and same day dispatch.

ebikesolution.co.uk

 

[jokerbike]

Thank you. Do you know what the awg is on that? And it hooks on one side to females and other side to controller ?We are fine from females to motor.

 

[AGS]

Mine has two 6mm copper wires for each phase (10swg x2). And has 6mm ring terminals that fit straight on the controller.

I used 6 of these 6mm butt connectors to solder all of the phase wires inside the motor, insulated with shrink tube. I used a 35 watt soldering iron.

Copper Tube Butt Connectors

Heavy duty electro tinned copper butt connectors.

www.toolstation.com

 

[jokerbike]

You should be able to buy a new motor cable harness to save messing around with individual wires.

I have this QS273 harness on my QS205 so it should fit on your cromotor.

The standard QS205 cable isn’t big enough when running high phase amps. And spade terminals certainly won’t cope, so you need to use ring terminals directly from the motor to the controller.

QS 273 Replacement Hub Motor Cable Ebike Stealth Bomber Hall Plugs 800

QS 273 Replacement Hub Motor Cable Ebike Stealth Bomber Hall Plugs 8000W with free delivery and same day dispatch.

ebikesolution.co.uk

Unfortunately it is out of stock everywhere I am looking.