Budget 2WD Heavy Duty Electric Chassis Kit
This chassis provides a sound basis for scratch building your own locomotives.  The main chassis is formed from ABS moulding wheels and axles are steel with brass wheel bearings and there is a worm drive to both axles. The tough electric motor will operate happily on two AA batteries, or with up to 7.2 volts when used with a speed controller.  
DATA: Wheelbase: 57 mm. Wheel dia: 20 mm. Chassis length: 128 mm.
Height (from rail to top of motor): 60 mm. Fixing holes: 2 at 3.2 mm on 
114 mm centres.           
£34.00    Specify 32 mm or 45 mm gauge.