florynow, You've got my curiosity now! I have two Decapods and they pull about 15 NMRA weighted 40-50 foot cars on level track. I work the trucks and replace all wheel sets with good metal wheels and axles. I haven't noticed any problems with the motor especially being underpowered. Just checked the Bachmann parts section and noticed they do have a motor that "looks" to be less than any of the other steam locos listed. My decapods do have a tractive effort problem though, I just considered it a part of learning to got the train moving. What would you suggest would be a good repower motor for them? If I can get it to pull more then by all means want to repower. They do lose a lot of tractive effort on any grade that I have. Stephen