Namura Standard Bore Piston Kit Size B 96.96mm for Yamaha YZ450FX 2024-2025 97mm

Standard Bore Piston Kit Size B 96.96mm 97mm for Yamaha YZ450FX 2024-2025

This standard bore piston kit from Namura is a direct replacement for Yamaha YZ450FX models, offering a 96.96mm bore (97mm stock) in Size B specification to restore compression and performance.

Overview

The Namura Standard Bore Piston Kit is designed for Yamaha YZ450FX dirt bikes from 2024 to 2025, featuring a premium cast piston with precise machining. It restores factory compression and ensures reliable power delivery for off-road enthusiasts.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Standard bore size B at 96.96mm for exact fitment
• Includes piston rings, wrist pin, and circlips for complete installation
• Engineered to meet OEM specifications for reliable performance
• Lightweight design reduces reciprocating mass for quicker throttle response

Fits These Machines

• for Yamaha YZ450FX (2024-2025)

On-The-Job Use

• Motocross racing on closed-course tracks
• Enduro and trail riding in rugged terrain
• Cross-country racing requiring high output
• Recreational off-road riding demanding durability

Specs At A Glance

Good To Know

Q: Is this piston kit suitable for a rebuild of my YZ450FX? A: Yes, it is designed as a direct replacement for Yamaha YZ450FX engines from 2024-2025, restoring original bore size and performance.

Q: What is included in the kit? A: The kit includes the piston, rings, wrist pin, and circlips, providing all necessary components for a standard bore rebuild.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.