High Pressure Radiator Cap 1.6 BAR 23 PSI BLACK - Japanese off-road Motorcycles and ATVs - HONDAS, KAWASAKIS, SUZUKIS, YAMAHAS 1.6 bar (kg/cm^2) or 23psi high pressure radiator cap This radiator cap raises the cooling system's maximum pressure to reduce boil over problems on your motorcycle or ATV Raises boiling point +21 to +25 degrees* Fahrenheit from a stock 1.1k (15.9 psi) radiator cap Raises pressure 7.25 psi over the stock 15.9 psi (1.1k) cap Perfect for Japanese 4-stroke and 2-stroke motorcycles, ATVs, and UTVs