Kubota's unique undercarriage gives it the best stability among excavators in this class. The KX016/KX018’s long tumbler distance increase stability and for added safety Kubota’s hydraulics work together to ensure straight travel even during simultaneous use of boom, arm and bucket.
The variable track enables easy access through 40-inch tight working areas; and with just the switch of the dozer lever, you get track expansion for improved balance when travelling or trenching. 
Minimum – 990mm Max 1240mm (KX016-4) 1300mm (KX018-4)