2Bros Parts

CYLINDER FULL RACE KIT 54MM YAMAHA YZ 125 22-25, ATHENA P400485100102 STD BORE, (Piston included)

£864.42Only 1 left

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The Athena Standard Bore Racing Cylinder Kit features a 54mm bore size and is designed for high-performance applications. It includes a high-performance aluminum cylinder with precision-machined intake and exhaust ports for optimized combustion efficiency. The racing cylinder head has a modular bronze insert for superior heat dissipation and thermodynamic performance. The kit comes with a lightweight single-ring piston with Oil Dot technology for reduced friction and enhanced lubrication. Engineered for increased power output, throttle responsiveness, and mechanical reliability, this kit is designed for seamless compatibility with OEM engine components. Specifications include a 54mm bore size, aluminum cylinder material with optimized porting, a modular bronze head insert, and a lightweight single-ring piston with Oil Dots. The kit includes the cylinder, head with insert, piston, and associated hardware. Cross-reference OEM part number: P400485100102.

Specifications
SKU
56-K1993.54.CKA.RACE
Brand
Athena
Availability
In Stock (1)
SKU
56-K1993.54.CKA.RACE
Brand
Athena
Availability
In Stock (1)
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena 54mm Full Race Cylinder Kit for Yamaha YZ 125

Enhance the performance of your Yamaha YZ 125 with the Athena Standard Bore Racing Cylinder Kit. This high-performance kit is engineered for optimal power delivery and superior thermal management, making it ideal for demanding racing applications. The 54mm bore size and precision components contribute to increased responsiveness and durability.

Key Features:

  • High-performance aluminium cylinder with precision-machined intake and exhaust ports for optimized combustion efficiency.
  • Racing cylinder head features a modular bronze insert for superior heat dissipation and thermodynamic performance.
  • Lightweight single-ring piston equipped with Oil Dot technology for reduced friction and enhanced lubrication.
  • Engineered to deliver increased power output, improved throttle response, and enhanced mechanical reliability.
  • Designed for seamless integration with OEM engine components.

Specifications:

  • Bore Size: 54mm (Standard Bore)
  • Cylinder Material: Aluminium with optimized porting
  • Cylinder Head Insert: Modular bronze design
  • Piston Type: Lightweight, single-ring with Oil Dots
  • Kit Contents: Cylinder, head with insert, piston, and necessary hardware.
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UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

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