G Force Honda B Series - 4th Gear Smooth Bore M/S 1.09 - 25/23

G-Force B-Series 4th Gear Smooth Bore Main Shaft (1.09 Ratio – 25/23) – Enhanced Top-End Performance and Strength

Upgrade your B-Series transmission with a 4th gear main shaft designed to deliver stronger acceleration in the upper gears while maintaining precision and durability. Featuring a smooth bore design, this gear is built for accurate fitment and reliable performance under sustained load.

Key Features:

• 1.09 gear ratio (25/23) for improved top-end acceleration
• Smooth bore design for precise integration in performance builds
• Increased strength over OEM 4th gear components
• Built to handle sustained high-RPM and high-speed operation
• Ideal for drifting, road racing, and performance street use

Details:

• Compatible with Honda B-Series transmissions
• Main shaft (M/S) configuration
• Designed to integrate with G-Force upgraded gear sets
• Precision-machined for consistent engagement and durability
• Sold individually for custom transmission builds
• Professional installation recommended

Why Choose G-Force:
As speeds climb, consistency becomes critical. G-Force main shaft gears are engineered to deliver reliable performance and durability under sustained load—so your drivetrain performs when it matters most.