Athena Factory Cylinder Kit 54mm 125cc — Fits 2005-2021 Yamaha YZ125

Save 12%
SKU: ATHS410485301012
No reviews

About Athena Athena (Italy) is the OE performance brand for ...Read More

Price:
Sale price$363.09 Regular price$414.95
Add To Cart
×

Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Athena

Athena (Italy) is the OE performance brand for motorcycle and powersports — cylinder kits, gasket kits, ECUs, and racing electronics used by KTM, Husqvarna, and Beta racing programs.

Watch in action

High-Performance Athena Cylinder for Modern YZ125

The Athena Factory 54mm Cylinder Kit is the premier choice for maintaining or upgrading the engine of your 2005-2021 Yamaha YZ125. As one of the most iconic two-strokes in motocross history, the YZ125 deserves components that match its legendary performance. This Athena kit delivers exactly that, providing a robust, high-performance cylinder that thrives under the pressure of competitive racing.

Technical Excellence for Your YZ125

  • Advanced Casting: Lightweight aluminum construction with excellent thermal management properties.
  • Precision Bore: 54mm diameter machined to exacting standards for ideal compression.
  • Durable Plating: Specialized coating ensures long-lasting performance and resistance to scoring.
  • Perfect Compatibility: Designed for the 2005-2021 YZ125 engine platform, ensuring a direct bolt-on fit.

Maintaining high compression is the secret to a fast 125cc two-stroke. Over time, your cylinder wall will wear, leading to power loss and potential engine failure. The Athena Factory Cylinder Kit allows you to reset your engine's performance, giving you the competitive advantage you need. Whether you are prepping for a race day or just keeping your bike in top condition, this kit is an essential investment in your bike's longevity and power. Trust the engineering expertise of Athena and the dedicated service of GGCRACING to keep your bike at the front of the pack.

Vehicle Fitment

Years Make Model Trim
2005-2021 Yamaha YZ125 Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Athena

Athena (Italy) is the OE performance brand for motorcycle and powersports — cylinder kits, gasket kits, ECUs, and racing electronics used by KTM, Husqvarna, and Beta racing programs.

Watch in action

High-Performance Athena Cylinder for Modern YZ125

The Athena Factory 54mm Cylinder Kit is the premier choice for maintaining or upgrading the engine of your 2005-2021 Yamaha YZ125. As one of the most iconic two-strokes in motocross history, the YZ125 deserves components that match its legendary performance. This Athena kit delivers exactly that, providing a robust, high-performance cylinder that thrives under the pressure of competitive racing.

Technical Excellence for Your YZ125

  • Advanced Casting: Lightweight aluminum construction with excellent thermal management properties.
  • Precision Bore: 54mm diameter machined to exacting standards for ideal compression.
  • Durable Plating: Specialized coating ensures long-lasting performance and resistance to scoring.
  • Perfect Compatibility: Designed for the 2005-2021 YZ125 engine platform, ensuring a direct bolt-on fit.

Maintaining high compression is the secret to a fast 125cc two-stroke. Over time, your cylinder wall will wear, leading to power loss and potential engine failure. The Athena Factory Cylinder Kit allows you to reset your engine's performance, giving you the competitive advantage you need. Whether you are prepping for a race day or just keeping your bike in top condition, this kit is an essential investment in your bike's longevity and power. Trust the engineering expertise of Athena and the dedicated service of GGCRACING to keep your bike at the front of the pack.

Vehicle Fitment

Years Make Model Trim
2005-2021 Yamaha YZ125 Base

Product Details

Product Description

About Athena

Athena (Italy) is the OE performance brand for motorcycle and powersports — cylinder kits, gasket kits, ECUs, and racing electronics used by KTM, Husqvarna, and Beta racing programs.

Watch in action

High-Performance Athena Cylinder for Modern YZ125

The Athena Factory 54mm Cylinder Kit is the premier choice for maintaining or upgrading the engine of your 2005-2021 Yamaha YZ125. As one of the most iconic two-strokes in motocross history, the YZ125 deserves components that match its legendary performance. This Athena kit delivers exactly that, providing a robust, high-performance cylinder that thrives under the pressure of competitive racing.

Technical Excellence for Your YZ125

  • Advanced Casting: Lightweight aluminum construction with excellent thermal management properties.
  • Precision Bore: 54mm diameter machined to exacting standards for ideal compression.
  • Durable Plating: Specialized coating ensures long-lasting performance and resistance to scoring.
  • Perfect Compatibility: Designed for the 2005-2021 YZ125 engine platform, ensuring a direct bolt-on fit.

Maintaining high compression is the secret to a fast 125cc two-stroke. Over time, your cylinder wall will wear, leading to power loss and potential engine failure. The Athena Factory Cylinder Kit allows you to reset your engine's performance, giving you the competitive advantage you need. Whether you are prepping for a race day or just keeping your bike in top condition, this kit is an essential investment in your bike's longevity and power. Trust the engineering expertise of Athena and the dedicated service of GGCRACING to keep your bike at the front of the pack.

Vehicle Fitment

Years Make Model Trim
2005-2021 Yamaha YZ125 Base

DRIVERS Also Bought

Recently viewed