M Part Primo Floor PumpThe M Part Primo floor pump is well suited to both high pressure road bikes and high volume MTB and gravel bike inflation all in one pump Top mounted 2. 5" dual scale gauge for easy reading and displaying low and high pressure 0 40 PSI zone features 1 digit increments for faster and accurate inflation on wider gravel or MTB tyres and where precision is required at lower pressures 40 160 PSI zone suited for road tyre inflation Durable aluminium barrel