A new motor modification for 32mm or 45mm gauge is available. After conversion these are NOT dual gauge. 
NOT suitable for two rail pick up. 
Same high quality bearings, gears and motor/gearbox as my other chassis. 
Please note there will be some damage to the paint on the axleboxes and these will be refitted with round head screws not the original hexagon heads - try taking one out and see why!! 
The two units are completely different so 32mm is £180, 45mm is £160. 
Contact me for details