9mm gauge, Super slow drive units, RTR

There are six variations. Please select the wheel size and wheel base before press the Add to Cart button. 

Features
- 9mm gauge for N gauge, HOn30, HOe, 009 or other 9mm gauge scales. Ready-to-run drive unit.
- This item has six variations. Wheel dia 6.0 and 7.0mm, wheel base 12, 14, 16mm. Includes one RTR unit and four unpainted 3D printed wheel centers. 
- The chassis is made of 3D printed high performance UV resin and is coated to reduce wear and already painted black. 
- Our 12V coreless motor, M0.2 gear system are used on the chassis that enables realistic run from extremely low speed (33mm/s-6V*). 
- It can be held in place by a center tapped tabs on your printed body or floorboard. See drawing for dimensions.
*Millimeter speed per second at 6V that was calculated from no-load motor rotation speed. 

#6511: dia 6.0, wheel base 12mm
#6521: dia 7.0, wheel base 12mm
#6531: dia 6.0, wheel base 14mm
#6541: dia 7.0, wheel base 14mm
#6551: dia 6.0, wheel base 16mm
#6561: dia 7.0, wheel base 16mm