Complete Athena Cylinder 125cc Yamaha YZ 125 2T 22-25

Cylinder complete 125cc from manufacturer Athena for Yamaha YZ 125 2T 22-25.

Athena Standard Bore Racing kit for Yamaha YZ 125, developed to maximize performance in competition with high-level components and OEM fitment.

Includes a high-performance aluminium cylinder with redesigned transfers to improve gas flow and optimize combustion. Provides immediate throttle response and superior power delivery across the entire rev range.

The racing cylinder head with modular bronze insert improves thermal dissipation and withstands high temperatures. Its combustion chamber is designed to improve air-fuel mixture speed, increasing efficiency and reliability under extreme conditions.

The lightweight single-ring piston reduces oscillating mass, improving engine response. Oil Dot technology improves lubrication, reduces friction, and extends the lifespan of the assembly.

• Optimized power delivery: Port design tuned for higher performance.
• Advanced thermal management: Bronze insert for efficient heat dissipation.
• Greater mechanical efficiency: Lightweight piston with reduced friction.
• Proven reliability: Components designed for extreme competition conditions.
• Total compatibility: Precise fit with Yamaha OEM components.

Technical specifications

• Displacement: 124.00 cc
• Bore: 54.00 mm
• Compression ratio: 15.0:1
• Net weight: 2.39 kg

Compatible models

FANTIC

• XE 2T 125 2023/2024
• XX 2T 125 2022/2025

YAMAHA

• YZ 125 2022/2025
• YZ X 125 2023/2025

Assembly instructions