ACL Bearings 4B8430HX-STD Performance Connecting Rod Bearing Set

The ACL Bearings 4B8430HX-STD is a high-performance connecting rod bearing set engineered specifically for Suzuki GSX-R1000 (988cc, 999cc) and Hayabusa (1299cc) inline-4 motorcycle engines. This Race Series bearing set features ACL's advanced HX design, which provides an additional 0.001 inch (0.025mm) of oil clearance compared to standard H-series bearings for optimized performance in high-RPM racing applications.

Key Features:

• HX-series design with 0.001" extra oil clearance for enhanced lubrication at high RPM
• High-strength overlay plate with reduced thickness for improved fatigue resistance
• Hardened steel backing on all rod bearings for superior support and retention
• Increased crush design for improved bearing retention in the housing
• Elimination of flash plating on bearing backs for better heat transfer and housing grip
• Increased eccentricity to compensate for bore distortion at high RPM
• Trimetal construction combining optimal strength and forgiveness
• Standard size bearing dimensions: 38.000-38.016mm tunnel, 34.976-35.000mm shaft, 1.475mm wall thickness, 15.00mm length

ACL Race Series bearings are trusted by professional motorsports teams worldwide, from drift racing to drag racing applications. The unique combination of advanced metallurgy, precision engineering, and race-proven design makes these bearings ideal for high-performance motorcycle engine builds where reliability and durability under extreme conditions are critical.