170ps Euro6d (6d-TEMP) Tippers that use the SID212evo engine ECU have a factory limiter set about 65mph, it’s due to what Ford call “Whole Life Testing Protocol” Recent emissions scandals really focused regulators on emissions after delivery is made & it’s calculated that in a year or 3 once engine & tyres are worn etc the emissions on affected models may just go over the prescribed limit. Normally one would hack the engine ECU to kill the limit but because no remapping equipment can access the Continental SID212/212evo engine ECU file yet it’s not yet possible. ( October 2020) “Diagnostically” it’s a no go even for those with online dealer tool access. I’m not 100% if it’s only 170’s but have heard 105ps models are not affected – You can check your ECU type – there is a label on it & its behind the passenger headlamp. If you’ve a SID211 it’s easy to remove any limiter & anything else is not.