Originally Posted by eduardo_garcia
Due to the oneway, the front and the rear tires can turn at diferent speeds. It the rear is smaller, 1 turn of the front wheel will runs certain distance. To the rear tire runs the same distance, it will have to turn faster (more than 1 turn to run the same distance). On this scenario, the oneway will desengage and you will have traction only on the front wheels (assuming that the front tires does not slip) Do you agree?
Oh yeah, I didn't understand the way you explained it before...thought you were saying something totally different...but something you got wrong is that the power will only go to the front wheels. Remember that the rear pully and brake are attached to the shaft and are not associated with the one-way, therefore there's no way that you could have power only to the front wheels...there will always be power to the rear...