I didn't build and test any gear design, but how much weight the motors can lift with 9V. And since CADA can lift the least, it has the least torque and is a poor choice for an off-road vehicle.
Yes, exactly these. Lego and Mouldking L Motors can lift up vertically 770g lead (connected by wire directly to short axle) with 9V. CADA Pro motor are faster, but don't have the torque to lift the lead. I think they are a bad decision for an offroader like this greyhound.
I have now compared a CADA L motor with a LEGO and a Mould King motor. As I suspected, the torque on the fast CADA motors is massively worse compared to the other two.
You do not need to feel attacked :)
About which order do you speak? You are saying that CADA l motor has more torque with 7.2 V than LEGO with 11.2 V... I would very much doubt that.
The video you linked is not scientific at all. And also in his other videos, he has forgotten to test/calculate torque. In most if not any cases more rpm means weaker torque. Again, please don't take it personal, it's fine when you have a different opinion.
Thanks for this information, but how do you know exactly? And how do you define 'stronger'? Torque or rpm?
Is there a torque test with LEGO vs MK vs CADA motors somewhere on the internet?