Wiseco Pistons: Kawasaki KLX300/KLX400/KX450F/KLX450R/KX450XC


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Wiseco MX Pistons
While Wiseco got its start in 2-stroke performance, the Wiseco team has remained at the forefront of powersports performance through
every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco offers a range of forged 4-stroke
pistons covering everything from the casual rider looking for durability to the professional-level racer competing for wins.

Wiseco Pro-Lite
• The Forged 2-stroke piston that started it all
• Great value for reliable fun factor • Refreshed performance from the track to the trail •
Optomizing forging design for strength optimization • Extra lightening operations for enhanced
throttle response • Wrist pin, rings and circlips included

Wiseco GP Series
• Designed for Endurance/High RPM Applications
• Designed with optimized features for long service life and top-end power
• Electra-Coated crown, ring groove and pin bore resists potential wear, combustion heat damages,
and ring micro-welding • ArmorGlife skirt coating reduces friction to optimize performance potential
• Wrist pin, rings and circlips included

Wiseco Racer Elite
Designed for Full-Race Applications
• First 2-stroke piston to be forged with 2000-series alloy, providing greater tensile strength
• ArmorPlating surface treatment on crown, in ring groove and pin bores protext from harmful detonation,
friction wear, and ring micro-welding • ArmorFit skirt coating conforms to the cylinder bore for optimized
fitment, translating to optimized performance • Wrist pin, rings and circlips included

Wiseco Forged Series
Multi-Purpose Riding and Racing
• A complete range of forged pistons engineered for each specific 4-stroke powersports engine
• Convering hundreds of applications across ATV, Dirt Bike, Street, Snowmobile, UTV, V-Twin and more
in a variety of bore size and complression ratio options • Forged material optimizes strength and service
life • Performance enhancing features varied across applicable applications to maximize durability and
power • Wrist pin, rings and circlips included

Wiseco Racer Elite
Designed for Full-Race Applications
• Engineered to be a complete racing piston package to compete at the highest levels
• Industry-first features including asymmetrical skirt, lapped ring and ring groove operation to minimize
operating friction and maximize ring seal for overall improved power
• CNC-machines, billet construction for improved strength to weight ratio
• Rings, circlips, and DLC-coated wrist pin included

Additional information


KLX300 97-2006, KLX400 2003, KX450F 06-2008, KLX450R 08-2021, KX450F 09-2012, KX450F13-2014, KX450F 16-2018, KX450F 2015, KX450F 19-2021, KX450XC 2021

Piston Type

Standard, ArmorGlide, ArmorGlide Boxed Forging, Racer Elite


11:1, 12.2:1, 13.5:1, 12.5:1, 12:1, 13:1, 14:1, 12.8:1


78.00mm, 80.00mm, 90.00mm, 92.00mm, 94.50mm, 96.00mm, 98.00mm, 96.03mm


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Make Model Year
Kawasaki KLX300 1997 - 2006
Kawasaki KLX400 2003
Kawasaki KLX450R 2008 - 2021
Kawasaki KX450F 2015
Kawasaki KX450F 2006 - 2008
Kawasaki KX450F 2009 - 2012
Kawasaki KX450F 2013 - 2014
Kawasaki KX450F 2016 - 2018
Kawasaki KX450F 2019 - 2021
Kawasaki KX450XC 2021
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