5mm (M5) thread to a 4mm hose tail, this is a standard M5 (0.8mm thread pitch). Can be permanently installed on motorcycles that have a screw plug in the vacuum port.
The CARB Balance Vacuum sync Gauge M5 Adaptors Motorcycle 2 Brass+ 6 Caps Bike would be ideal for motorcycle enthusiasts looking for a durable and versatile set of fuel and air flow gauges.
