These shock-proof liquid filled gauges are vibration resistant to monitor your oil pressure with extreme accuracy! Rugged gauge case is constructed of stainless steel with brass internals. Silicone filled for vibration dampening with a durable acrylic lens. 1-3/4” Gauge Face (including bezel). 0-60 psi 1/8” NPT rear connection. Black gauge face with a polished Stainless Steel bezel. Dimensions: Gauge face (w/ bezel)- 1.75” Gauge Case- 1.6” Depth- 1” Fitment: Any bike that will accept the above listed dimensions that utilizes an 1/8” NPT fitting.