21. S850/T870 - IMPROVED OPERATOR COMFORT SJC vs SCPA (opt.) on S850 Roller suspension on T870 The roller suspension isincluded as standard on the T870. For the S850 onlyyoucanchoosebetween SCPA or SJC controls. SCPA (Standard Controls Power Assist) is a new type of electronicallyassistedcontrols. SCPA controls allow the operator to electronically control the boom and bucket with the foot pedals. The travel of the machine will be electronically controlled by the joysticks with the hands. 2nd speed on S850/T870 The 2nd speed on the S850 isincluded as a standard on the machine For the T870 the 2nd speed is an option availableearlynextyear For operatorswhich are used to operate the manualcontrolswithpedals on a loader this control type isrecommended.