Connecting Rod Bearing and Crankshaft Main Bearing set with standard shaft diameter of 30mm, available in STD, +25, +50, +75, and +100 size options. Package includes 8 pieces of connecting rod bearings and 8 pieces of crankshaft main bearings. The connecting rod and crankshaft main bearing both fit a 30mm shaft diameter. Manufactured using professional production techniques to enhance pressure resistance, fatigue resistance, and anti-occlusion performance, contributing to improved operational efficiency and extended service life. Designed to fit models including VFR400Z, VFR400 NC21, VFR400 NC24, VFR400 NC30, VFR400R (2007), and RVF400 NC35. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.