Micro-speed motor SPARE PARTS for 4WD Arduino robot platfor

I’d like to know where can I find some spare parts of the motor/reduction to use into 4WD Arduino robot platform (seeedstudio.com/depot/4wd-ar … th=170_172) ?

I have one of this broken and now I need to replace it.

Can someone help me?

Best regards.

Dear customer,

We are so sorry to tell you that 4WD Arduino robot platform we would not sell in spare parts.
So if you can find others parts to instead and replace it would be better.
And thanks your support us.

Best regards,