12Pcs Motorcycle Parts Main Crankshaft Crank Shaft Bearing For ZRX400 ZX400K ZZ-R400 ZZR400 ZZR600 ZRX 400 600 Displacement: 400ml Item Width: 14.8 External Testing Certification: ISO9001 No.of Cylinders: 4 Cylinder Material Type: Aluminium Special Features: Direct replacement of parts CD-ROM read speed: Not applicable 105℃ volatile content: This main crankshaft crank shaft bearing set contains 12 pieces and is designed for specific motorcycle models including ZRX400, ZX400K, ZZ-R400, ZZR400, ZZR600, and ZRX 400 600.It serves as a direct fit replacement for the crankshaft bearings, requiring no modifications during installation.The bearings are constructed from aluminium and meet ISO9001 certification standards for consistent quality and performance.With no item diameter, height, or length specified, the dimensions are standardized to match the design.This set supports in performance applications and is intended for riders focused on maintaining or upgrading their crankshaft system with mechanical.