Hi,
[...] mass is a little less than 1kg
How little less?
Can you please give me some advice on what motors should i get in order to get good torque to push other bots away and also a good speed.
What do you define as
good torque?
What do you define as
good speed?
What 1.2V batteries (cells) are you using? AAA, AA, C, D or what?
Are they rechargeable?
Do you have a motor controller for it?
If so, what is the specs on that?