2Bros Parts

PISTON KIT A 83MM SUZ RM-Z/KAW KX 250 07-22, ATHENA S5F08300005A 290CC BIG BORE, KIT A

$232.43Only 1 left

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Athena forged piston Ø 82.95 mm for Athena Big Bore Cylinder. Manufactured with advanced CNC machining tools, these pistons ensure dimensional tolerances under 0.01 mm. They are constructed from a high-performance aluminum alloy with high silicon content, offering OE piston reliability with enhanced resistance and performance. Some piston skirts feature a molybdenum disulfide coating for reduced friction. Each piston is engineered in Italy and tested on engine dynamometer benches and on track. This piston kit includes the piston, pin, circlips, and piston rings. Rings are produced in Japan with wear-resistant coatings for increased durability. Technical features: Big End Pin Diameter 16x8.5x44 mm, Bore Diameter 82.95 mm, Compression Height 17.70 mm, Compression Ratio 13.5:1, Displacement 250 cc, Net Weight 0.23 Kg, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Part No. S5F08300005A.

Specifications
SKU
56-K148.83.PIA
Brand
Athena
Availability
In Stock (1)

Fitments (87)

MakeModelYear
HUSQVARNASMR 2502006
HUSQVARNASMR 2502007
HUSQVARNASMR 2502008
HUSQVARNASMR 2502009
HUSQVARNATC 2502006
HUSQVARNATC 2502007
HUSQVARNATC 2502008
HUSQVARNATC 2502009
HUSQVARNATE 2502006
HUSQVARNATE 2502007
HUSQVARNATE 2502008
HUSQVARNATE 2502009
HUSQVARNATE 3102010
HUSQVARNATXC 2502006
HUSQVARNATXC 2502007
HUSQVARNATXC 2502008
HUSQVARNATXC 2502009
KAWASAKIKX 250F2004
KAWASAKIKX 250F2005
KAWASAKIKX 250F2006
KAWASAKIKX 250F2007
KAWASAKIKX 250F2008
KAWASAKIKX 250F2009
KAWASAKIKX 250F2010
KAWASAKIKX 250F2011
KAWASAKIKX 250F2012
KAWASAKIKX 250F2013
KAWASAKIKX 250F2014
KAWASAKIKX 250F2015
KAWASAKIKX 250F2016
KAWASAKIKX 250F2017
KAWASAKIKX 250F2018
KAWASAKIKX 250F2019
SUZUKIRM-Z 2502004
SUZUKIRM-Z 2502005
SUZUKIRM-Z 2502006
SUZUKIRM-Z 2502007
SUZUKIRM-Z 2502008
SUZUKIRM-Z 2502009
SUZUKIRM-Z 2502010
SUZUKIRM-Z 2502011
SUZUKIRM-Z 2502012
SUZUKIRM-Z 2502013
SUZUKIRM-Z 2502014
SUZUKIRM-Z 2502015
SUZUKIRM-Z 2502016
SUZUKIRM-Z 2502017
SUZUKIRM-Z 2502018
YAMAHAWR 250F2001
YAMAHAWR 250F2002
YAMAHAWR 250F2003
YAMAHAWR 250F2004
YAMAHAWR 250F2005
YAMAHAWR 250F2006
YAMAHAWR 250F2007
YAMAHAWR 250F2008
YAMAHAWR 250F2009
YAMAHAWR 250F2010
YAMAHAWR 250F2011
YAMAHAWR 250F2012
YAMAHAWR R 2502008
YAMAHAWR R 2502009
YAMAHAWR R 2502010
YAMAHAWR R 2502011
YAMAHAWR R 2502012
YAMAHAWR R 2502013
YAMAHAWR R 2502014
YAMAHAWR R 2502015
YAMAHAWR R 2502016
YAMAHAWR R 2502017
YAMAHAWR X 2502008
YAMAHAWR X 2502009
YAMAHAWR X 2502010
YAMAHAWR X 2502011
YAMAHAWR X 2502012
YAMAHAWR X 2502013
YAMAHAWR X 2502014
YAMAHAWR X 2502015
YAMAHAWR X 2502016
YAMAHAWR X 2502017
YAMAHAYZ 250F2001
YAMAHAYZ 250F2002
YAMAHAYZ 250F2003
YAMAHAYZ 250F2004
YAMAHAYZ 250F2005
YAMAHAYZ 250F2006
YAMAHAYZ 250F2007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
83mm
Variant Id
252915
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Forged Piston Kit A - 83mm Big Bore

Upgrade your motorcycle's performance with the Athena Forged Piston Kit A. Designed for Athena Big Bore Cylinders, this kit is crafted from a special high-performance aluminum alloy with a high silicon content, ensuring the reliability of original equipment while providing enhanced resistance and superior performance. Produced using advanced CNC machining tools, this piston offers dimensional tolerances of less than 0.01 mm for precision engineering.

The piston features a perfectly smooth profile for regular flow and optimal flame propagation. Some piston skirts are treated with a molybdenum disulfide coating, applied by screen printing, to further reduce friction, boost performance, and extend durability. Each piston is engineered in Italy and rigorously tested on dynamometer benches and on the track to validate its performance in extreme conditions.

This piston kit includes the piston, pin, circlips, and piston rings. The piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase retention and durability, ensuring they adapt perfectly to the cylinder liner even at low tangential load. All components are replaceable and interchangeable.

Key Features:

  • Piston Type: Forged for superior strength and performance.
  • Big Bore Application: Designed for Athena Big Bore Cylinders.
  • Material: Special high-performance aluminum alloy with high silicon content.
  • Precision Machining: CNC machined with dimensional tolerances of less than 0.01 mm.
  • Friction Reduction: Some skirts feature a molybdenum disulfide coating.
  • High-Quality Rings: Made in Japan with wear-resistant coatings (PVD or chromium nitride).
  • Complete Kit: Includes piston, pin, circlips, and piston rings.
  • Engineered and Tested: Designed in Italy and validated under extreme conditions.

Technical Specifications:

  • Bore Diameter: 82.95 mm
  • Compression Height: 17.70 mm
  • Compression Ratio: 13.5:1
  • Number of Segments: 2
  • Piston Pin Type: Biconical
  • Big End Pin Diameter: 16x8.5x44 mm
  • Net Weight: 0.23 Kg
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call us+44 330 133 3748
Email us[email protected]

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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