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Visual tire cap pressure gauge
 
MODEL:Indicator Caps

Specification:
1.Unscrew existing valve cap.  
2.Set tyre pressue to manufacturer's recommendation.(tyre must be cold)  
3.Screw indicator cap onto valve by hand.  
4.Check regularly to monitor pressure.  
5.If red indicator is above the green,your tyre has lost pressure  
6.Re-inflate the tyre to correct pressure.  
7.Keep cap clean to make checking easy.  
Notice:On motorcycles, please check   
wheel  freely after fitting