it pulled it from a dead weight tho and its pulling alot more then that it wouldnt even struggle with 150 kg and look how much its straining all the way through
Yes mate 150 kilos max, rolling resistance is calculated in many ways and is effected by a few factors, rolling resistance for a car on flat tarmc is weight/25
casters are much smaller and running on a steel rail will reduce the rolling resistance by quite a bit, less friction than rubber and tarmac. i divided the weight by 30 to give 150 kilos. if it was a car on flat level tarmac then 180.
ATB
REDEYE