Kawasaki Ninja 500cc standard bore Piston Kit
Kawasaki Ninja 500cc Standard Bore Ceramic Coated Dome/Gas Ported Piston Kit 451cc - Image 2
Kawasaki Ninja 500cc Standard Bore Ceramic Coated Dome/Gas Ported Piston Kit 451cc - Image 3
Kawasaki Ninja 500cc Standard Bore Ceramic Coated Dome/Gas Ported Piston Kit 451cc - Image 4

Kawasaki Ninja 500cc Standard Bore Ceramic Coated Dome/Gas Ported Piston Kit 451cc

Spears Racing High Compression Standard bore Piston Kit 500cc 12.8 to 1, the only designed race piston that has a ceramic coated dome and lateral (horizontal ) gas ports as a standard feature Utilizing State of the Art CNC machines for manufacturing.

 

 

Original price was: $689.99.Current price is: $674.99.

10 in stock

SKU SP01-500 Piston Kit 12.8 to 1 Categories , Tags , ,

Description

Kawasaki Ninja 500cc Standard Bore Piston Kit 451cc 12.8:1 Compression by Spears Racing
Elevate your Kawasaki Ninja 500cc to new heights with the Spears Racing Kawasaki Ninja 500cc standard bore Piston Kit, engineered for unmatched performance and precision. Designed with a 12:8:1 compression ratio, compared to OEM 11:3:1, this kit transforms your ride into a championship-caliber machine, delivering explosive power and razor-sharp responsiveness for both street and track enthusiasts.
Uncompromising Quality and Innovation

For decades, Spears Racing has partnered with JE Pistons, a global leader in piston manufacturing, to craft race-proven components that dominate the competition. Our relentless pursuit of excellence drives continuous innovation, adapting to the evolving demands of the industry. This  Kawasaki Ninja 500cc standard bore Piston Kit piston kit is a testament to that commitment, featuring:
  • Proprietary Forgings: Custom-designed for the Kawasaki Ninja 500cc, these forgings are beneficial to  rotational mass for quicker acceleration and improved throttle response.
  • Advanced Materials: Each kit includes proprietary-treated wrist pins and piston rings, exclusively manufactured for Spears Racing, ensuring superior durability and performance under extreme conditions.
  • Precision Engineering: Utilizing state-of-the-art CNC machining, every piston is crafted to tolerances within millionths of an inch, guaranteeing flawless fitment and consistent performance.
Proven on the Track, Perfected in the Dyno Room

Spears Racing Kawasaki Ninja 500cc standard bore Piston Kit are born from rigorous research and development, tested extensively on the dyno and proven on racetracks worldwide. This 500cc kit will powered championship-winning bikes, delivering the edge needed to outperform the competition. Whether you’re chasing podiums or carving canyons, this kit unlocks the full potential of your Ninja’s engine.

Key Features:
  • 500cc Design: Increases compression, piston speed for enhanced torque and horsepower.
  • 12.8:1 Compression Ratio: Maximizes combustion efficiency for explosive power output.
  • Lightweight Forging: Weight compared to OEM pistons, improving engine response.(155g)
  • Race-Ready Durability: Built to withstand the rigors of high-performance riding and racing.
Why Choose Spears Racing?
With decades of expertise and a legacy of winning, Spears Racing delivers performance you can trust. Every component in this kit reflects our dedication to quality, precision, and innovation, ensuring your Kawasaki Ninja 500cc performs at its peak.
Unleash the true potential of your bike. Upgrade to the Spears Racing 500cc Standard bore Piston Kit today and experience the thrill of race-bred engineering.

A more recent advancement in piston design is lateral (horizontal) gas ports as a standard feature on certain Spears Racing gas port (GP) pistons and an option on many others. This process places gas ports above top of the top ring land to provide combustion pressure access to the back side of the ring. Because these lateral holes are somewhat restricted by the small area above the top ring land, they are not quite as effective but are also not subject to clogging concerns.

 

 

 

Spears Racing Thermal Barrier Crown Coating.
Elevate the durability and performance of your Kawasaki Ninja 500 with the Spears Racing 500cc standard Piston Kit, featuring JE Pistons’ proprietary Thermal Barrier Crown Coating. This advanced ceramic gold coating is designed to combat the destructive effects of heat, significantly extending piston lifespan while boosting engine efficiency for street and track applications.
Thermal Barrier Crown Coating: Engineered for Endurance
Heat is the enemy of piston longevity, causing annealing (softening) over time through repeated thermal cycles. Without protection, the piston crown absorbs intense heat, leading to material degradation, deformation into an “umbrella shape,” and eventual failure. JE’s state-of-the-art ceramic gold coating, applied in-house, revolutionizes piston performance by:
  • Reflecting Heat: The .0015” thick coating acts as a thermal shield, rejecting a large portion of combustion heat that would otherwise be absorbed by the piston crown.
  • Preventing Annealing: By minimizing heat transfer, the coating keeps the piston material stronger for longer, virtually eliminating softening and extending the piston’s lifespan indefinitely under proper engine conditions.
  • Enhancing Combustion Efficiency: The coating reflects heat back into the combustion chamber, increasing exhaust gas velocity and improving scavenging potential for better power output.
This cutting-edge technology ensures your pistons withstand the rigors of high-performance riding or racing, delivering reliability and performance lap after lap.
Spears Racing: A Legacy of Precision and Victory
For over four decades, Spears Racing has partnered with JE Pistons to produce race-winning components using state-of-the-art CNC machining and innovative manufacturing techniques. Our commitment to excellence drives continuous advancement, resulting in:
  • Custom Forgings: Tailored specifically for the Kawasaki Ninja 500cc, these lightweight forgings reduce rotational mass for quicker revs and enhanced acceleration.
  • Proprietary Components: Exclusively manufactured wrist pins and piston rings undergo rigorous R&D to ensure unmatched durability and performance.
  • Precision Manufacturing: Every piston is crafted to tolerances within millionths of an inch, guaranteeing perfect fitment and consistent performance.
Proven on the World Stage
Spears Racing pistons, including those with Thermal Barrier Crown Coating, have powered victories across the globe for over 40 years. From dominating closed-course racing and European road circuits to securing multiple Isle of Man TT Twins titles, our pistons are battle-tested. Notable achievements include:
  • National wins in Roadracing worldwide.
  • Multiple twins championships worldwide.
Why Choose the Thermal Barrier Crown Coating?
  • Extended Piston Life: Reduces thermal transfer to prevent softening and deformation.
  • Improved Power: Enhances combustion efficiency for increased horsepower and torque.
  • Race-Proven Reliability: Trusted by champions in the most demanding racing environments.
  • Perfect Integration: Designed for seamless compatibility with the 500cc Standard bore Piston Kit (12.8:1 compression).
Unleash Your Ninja’s Potential
The Spears Racing 500cc standard bore Piston Kit with Thermal Barrier Crown Coating is the ultimate upgrade for your Kawasaki Ninja 500cc. Whether you’re chasing trophies or carving corners, this kit delivers unrivaled performance, durability, and precision.
Order now and experience the technology that powers champions.

 

“Preferred Performance” Pistons Kits By Spears Racing

Kawasaki Ninja 500cc Standard bore Piston Kit Includes the Following:

Horizontal (lateral) Gas Ports

Ceramic Dome Coating

Pistons x 2

Wrist Pins x 2

Piston Rings x 2

Cir Clips x 4

 

 

 

Additional information

Weight 3.0 lbs

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