Hello all, i previously asked another member about the tracks on rad 2.0 he indicated that it could probably pull the robot but motors may not last. My idea hear is probably replace the motors. I have a omnibot 2000 on the way and im looking for a good alternative to the loud 1984 motors in the omnibot. Roombas wieght 6.5 pounds , so 4 roomba motors shou,d support 13 pounds and 8 motors 26. I would run 4 on each side i guess in parrallel. Are roomba drive motors themslves very loud? Im looking for lower noise options because downstairs i have hardwood and some tile any ideas appreciated thanks