YHR, yeah I noticed it too, dont know why it has bearings in all the shafts when its evident they have no use... Maybe that's for marketing purposes...

Pedzola: The advantages of the dual ratio gearboxes is they have two speeds, you just need to change the final sprochet and experiment with new speeds and torque, but I agree with you that the smaller motor its a big down for me...

But as far as I know those are the only ones that you can fit on the asiatam's Panzer IV...