When it comes to enclosed end riders, you want a truck that gives you more. More dependability. More productivity. More comfort. Yale® iSi Technology™ incorporates a common control system with consistent functionality across the warehouse product line. The Integrated Smart Interface utilizes the same software, diagnostic codes and functionality for the main warehouse trucks creating commonality for users, supervisors and service personnel. The system offers full customization to allow a user to properly match the trucks’ performance with the skill of the operator.