The Number 5 and Number 6 Shays were NOT "sissy sized" Shays. They were honest-to-goodness working Shays that happened to be gauged for 3'-0" between the rails track. Our models feature a Faulhauber Micro-Motor with an integral gearbox, driving through a 1:1 Helical gearset on the drive axle, with a sealed ball bearing to control runout on the shaft. All this mumbo-jumbo translates into a VERY SMOOTH Drive Train that will likely outlast you and me ! It's that good ! Back to the #6 Shay page. Copyright P-B-L circa 2007. All Rights Reserved.