SmartDrive MX2 + Power Assist by Max Mobility The NEW SmartDrive MX2 + Wheelchair Power Assist by Max Mobility now comes with the PushTracker wristband allowing for individualized tweaks to the tap sensitivity, control modes, top speed and more. The SmartDrive is intuitive, lightweight and... MSRP: $7,417.00 Was: Now: $6,675.40 Choose Options