2Bros Parts

PISTON KIT 100MM SUZUKI RM-Z 450 08-12, ATHENA S4F100000170 490CC BIG BORE

£217.82

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ATHENA Forged Racing Piston Ø 99.95 mm for Athena Big Bore Cylinder - S4F100000170. This piston is made from a special high-performance aluminum alloy with high silicon content, produced with cutting-edge CNC machining tools ensuring dimensional tolerances of less than 0.01 mm. Some pistons have a molybdenum disulfide coating on the skirts to reduce friction. The piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase durability. This piston kit contains the piston, pin, circlips, and piston rings. Big End Pin Diameter: 19x10x45 mm. Bore Diameter: 99.95 mm. Compression Height: 29.00 mm. Compression Ratio: 12.2:1. Displacement: 450 cc. Net Weight: 0.39 Kg. Number Of Segments: 2. Piston Pin Type: Biconical. Piston Type: Forged.

Specifications
SKU
56-K131.100_PI
Brand
Athena
Availability
In Stock (2)

Fitments (119)

MakeModelYear
HONDACRE F R 4502005
HONDACRE F R 4502006
HONDACRE F R 4502007
HONDACRE F X 4502005
HONDACRE F X 4502006
HONDACRE F X 4502007
HONDACRE F X 4502008
HONDACRE F X 4502009
HONDACRE MOTARD 4502002
HONDACRE MOTARD 4502003
HONDACRE MOTARD 4502004
HONDACRE MOTARD 4502005
HONDACRE MOTARD 4502006
HONDACRE MOTARD 4502007
HONDACRE MOTARD 4502008
HONDACRE MOTARD 4502009
HONDACRE MOTARD 4502010
HONDACRE X IE 4502007
HONDACRE X IE 4502008
HONDACRF 450R2002
HONDACRF 450R2003
HONDACRF 450R2004
HONDACRF 450R2005
HONDACRF 450R2006
HONDACRF 450R2007
HONDACRF 450R2008
HONDACRF 450X2005
HONDACRF 450X2006
HONDACRF 450X2007
HONDACRF 450X2008
HONDACRF 450X2009
HONDACRF 450X2010
HONDACRF 450X2011
HONDACRF 450X2012
HONDACRF 450X2013
HONDACRF 450X2014
HONDACRM F R 4502005
HONDACRM F R 4502006
HONDACRM F R 4502007
HONDACRM F X 4502005
HONDACRM F X 4502006
HONDACRM F X 4502007
HONDACRM F X 4502008
HONDACRM F X 4502009
HONDACRM X IE 4502007
HONDACRM X IE 4502008
HONDACRMF CREF X 4502005
HONDACRMF CREF X 4502006
HONDACRMF CREF X 4502007
HONDACRMF CREF X 4502008
HONDACRMF CREF X 4502009
HONDATRX 450ER2006
HONDATRX 450ER2007
HONDATRX 450ER2008
HONDATRX 450ER2009
HONDATRX 450ER2010
HONDATRX 450ER2011
HONDATRX 450ER2012
HONDATRX 450ER2013
HONDATRX 450ER2014
HONDATRX 450R2006
HONDATRX 450R2007
HONDATRX 450R2008
HONDATRX 450R2009
HONDATRX 450R2010
HONDATRX 450R2011
HONDATRX 450R2012
HONDATRX 450R2013
HONDATRX 450R2014
HONDATRX R 4502006
HONDATRX R 4502007
HONDATRX R 4502008
HONDATRX R 4502009
HONDATRX R 4502010
HONDATRX R 4502011
HONDATRX R 4502012
HONDATRX R 4502013
HONDATRX R 4502014
HUSABERGFE E 6501999
HUSABERGFE E 6502000
HUSABERGFE E 6502001
HUSABERGFE E 6502002
HUSABERGFE E 6502003
HUSABERGFE E 6502004
HUSABERGFE E 6502005
HUSABERGFS E C 6501999
HUSABERGFS E C 6502000
HUSABERGFS E C 6502001
HUSABERGFS E C 6502002
HUSABERGFS E C 6502003
HUSABERGFS E C 6502004
HUSABERGFS E C 6502005
KAWASAKIKLX 450R2008
KAWASAKIKLX 450R2009
KAWASAKIKLX 450R2010
KAWASAKIKLX 450R2011
KAWASAKIKLX 450R2012
KAWASAKIKLX 450R2013
KAWASAKIKLX 450R2014
KAWASAKIKLX 450R2015
KAWASAKIKLX 450R2016
KAWASAKIKLX 450R2017
KAWASAKIKX 450F2005
KAWASAKIKX 450F2006
KAWASAKIKX 450F2007
KAWASAKIKX 450F2008
SUZUKIRM-Z 4502005
SUZUKIRM-Z 4502006
SUZUKIRM-Z 4502008
SUZUKIRM-Z 4502009
SUZUKIRM-Z 4502010
SUZUKIRM-Z 4502011
SUZUKIRM-Z 4502012
SUZUKIRM-Z 4502013
SUZUKIRM-Z 4502014
SUZUKIRM-Z 4502015
SUZUKIRM-Z 4502016
SUZUKIRM-Z 4502017
SUZUKIRM-Z 4502018
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
252798
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Forged Piston Kit - Big Bore Upgrade

Enhance your motorcycle's performance with this high-quality Athena forged piston kit. Designed for use with Athena Big Bore cylinder kits, this piston is engineered for superior power and reliability. Athena is a leading manufacturer of motorcycle spare parts with over 40 years of experience, dedicated to providing cutting-edge components for off-road riders.

This piston is crafted using advanced CNC machining tools to ensure exceptional dimensional accuracy, with tolerances less than 0.01 mm. It's made from a special high-performance aluminum alloy rich in silicon, offering the reliability of original equipment (OE) pistons while providing increased resistance and outstanding performance. The smooth piston profile promotes efficient airflow and optimal flame propagation.

Some piston skirts feature a molybdenum disulfide coating, applied through screen printing, to further reduce friction, boost performance, and extend durability. Athena engineers prioritize advanced technical solutions and the highest quality standards, meeting or exceeding OE production specifications for guaranteed performance and dependability.

Each piston is meticulously developed and tested by Athena's R&D department in Italy, undergoing rigorous dynamometer testing and track validation in extreme conditions. This piston kit includes the piston, pin, circlips, and piston rings, all of which are replaceable and interchangeable. The included piston rings, manufactured in Japan with wear-resistant coatings (PVD or chromium nitride), minimize friction with the cylinder, leading to higher performance and increased durability. These rings are designed for excellent adaptability to the cylinder liner, even under low tangential load.

Key Features:

  • Forged piston construction for superior strength and performance.
  • Special high-performance aluminum alloy with high silicon content.
  • Precision CNC machining for tight tolerances (<0.01 mm).
  • Optimized piston profile for improved airflow and combustion.
  • Optional molybdenum disulfide coating on some skirts to reduce friction.
  • High-quality piston rings manufactured in Japan with wear-resistant coatings.
  • Kit includes piston, pin, circlips, and piston rings.
  • Engineered and tested in Italy for performance and reliability.

Technical Specifications:

  • Piston Type: Forged
  • Bore Diameter: 99.95 mm
  • Compression Height: 29.00 mm
  • Compression Ratio: 12.2:1
  • Number Of Segments: 2
  • Piston Pin Type: Biconical
  • Big End Pin Diameter: 19x10x45 mm
  • Displacement: 450 cc
  • Net Weight: 0.39 Kg

Note: Products designed for increased displacement and power beyond legal road limits are intended exclusively for competitive use. Athena disclaims responsibility for any use contrary to national regulations.

Before you buy

QUESTIONS? JUST ASK

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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.

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

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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