The intended use of a lift truck is not determined by speed. Speed is governed by a person's experience, surrounding environment, stability triangle and the ability to efficiently and safely move loads from Point A to Point B. SInce there are no speed limits posted in warehouses, a speedometer is not required. No 'cops' are going to ticket you for 'speeding'.

If management finds that the 'speed' of the forklifts appear too dangerous, they can ask you to slow down, not measured by a speedometer but measured by common sense.

Battery oprated trucks can have their maximum speed governed however a competent technician would be required to perform such work.