Athena
Athena 20-21 Yamaha YZ 125 X Stock Bore Complete Cylinder Kit - P400485100017
- SKU:
- ATHP400485100017
- UPC:
- 8055681300958
- MPN:
- P400485100017
- Availability:
- Regularly stocked product
Description
What is the primary purpose of the Athena STD Bore Cylinder Kits?
Athena STD Bore Cylinder Kits enhance engine performance and durability for your 2005-2021 Yamaha YZ125.
Are Athena STD Bore Cylinder Kits easy to install?
Professional installation is strongly recommended for Athena STD Bore Cylinder Kits to ensure optimal performance and engine longevity.
Athena STD Bore Cylinder Kits deliver enhanced durability and increased power output for your 2005-2021 Yamaha YZ125. Featuring an aluminum cylinder with galvanic coating and a forged piston with molybdenum coating, these kits achieve superior heat dissipation and smoother operation. Trust Athena for robust performance upgrades that elevate your motorcycle's capabilities.
What Owners Say
Owners and enthusiasts consistently highlight Athena's superior cylinder coatings as a key differentiator, noting they're worth the premium over budget alternatives. The larger coolant areas help maintain lower operating temperatures, a practical benefit riders appreciate during demanding use. Those who've installed the big bore kits report transformative performance gains, particularly when paired with Athena's ECU maps for stock systems. While some note the higher price point compared to cheaper eBay alternatives, experienced builders warn that saving a few hundred dollars isn't worth risking catastrophic engine damage from inferior components. Athena kits have earned solid standing among the dirt bike community as reliable, performance-oriented solutions that justify their cost.
Key Features
- aluminum cylinder with galvanic coating design
- forged piston with molybdenum coating
Why Choose the ATH Std Bore Cylinder Kits
Delivers superior heat dissipation for sustained peak performance on the track.
Achieves smoother piston travel and reduced friction for increased power output.
Provides enhanced durability and longevity for your high-performance engine.
Transforms your YZ125 with a robust and race-ready cylinder assembly.
Who Is This For?
Engine Performance — 9/10
Aluminum cylinder and forged piston enhance power.
Racing Competition — 8/10
Premium performance components for competitive use.
Track / Autocross — 8/10
Enhanced power output suitable for track use.
Street Performance — 7/10
Increased power output improves street performance.
Weekend Off-Roading — 7/10
Enhanced durability for off-road conditions.
Additional Resources
Important Notices
⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.
Browse More: Shop All Cylinder Kits — Engine Components
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Clearance Item: |
N |
MPN: |
P400485100017 |
Proposition 65: |
N |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Cylinder Kits |
Product Level: |
Premium Performance |
Engine Performance: |
9/10 |
Racing Competition: |
8/10 |
Track / Autocross: |
8/10 |
Street Performance: |
7/10 |
Weekend Off-Roading: |
7/10 |
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