fits model: Yz, 125. make: Yamaha. year: 2005–2018.

( Brand: Vertex Pistons ), ( Manufacturer Part Number: 23119100 ), ( Part Type: Piston )
The Vertex Pistons 23119100 Big Piston is an excellent upgrade for Yamaha YZ 125 motorcycles manufactured between 2005 and 2018. This piston is specifically designed to provide enhanced performance and reliability, making it an ideal choice for riders seeking to boost their bike's power output and efficiency.
The Big Piston, which comes in a 54.95mm bore size, is made from premium quality aluminum alloy material. Aluminum is known for its resistance to heat and its ability to provide excellent strength at a comparatively lighter weight. This piston is precisely CNC-machined to ensure a perfect fit and finish.
This Vertex piston offers an increase in compression height of 1mm compared to the stock piston. The enhanced compression height helps boost the engine's compression ratio, leading to better combustion efficiency and a resulting increase in power and torque.
Additionally, this piston features a honed skirt design for optimal engine oil flow. This design ensures optimal lubrication for the piston's skirt area, leading to reduced friction and reduced wear and tear on the piston and rings.
The Vertex 23119100 Big Piston is also engineered with an optimized ring pack setup. This setup includes a Relnogist ring set, comprised of top, second, and oil control rings. These rings are designed from high-quality materials that exhibit excellent wear resistance and provide an optimum sealing performance.
The Vertex 23119100 Big Piston comes with ring gaps already measured and marked for easy installation. Additionally, it includes a new wrist pin and a reusable piston pin bore gasket. These accessories simplify the installation process, making it a hassle-free upgrade.
In summary, the Vertex Pistons 23119100 Big Piston offers several advantages, including enhanced power output, improved combustion efficiency, reduced wear and tear, and a simplified installation process. It is a high-quality and reliable upgrade for any Yamaha YZ 125 motorcycle between 2005 and 2018.
The Vertex Pistons 23119100 is a popular aftermarket option for upgrading the stock piston in Yamaha YZ 125 motorcycles manufactured between 2005 and 2018. This piston comes with a 54.95mm bore size and a 1mm larger compression height than the OEM piston. In this analysis, we will examine the potential benefits and downsides of installing this aftermarket piston.
Pros:1. Better Performance: The aftermarket piston provides increased performance due to its larger compression height and bore size. This results in increased power output and improved engine efficiency.
2. Enhanced Durability: Vertex uses high-quality materials like forged aluminum alloy for their pistons which provides better strength and resistance to engine stress, ensuring longer piston life.
3. Improved Temperature Management: The aftermarket piston may help in reducing engine temperatures through better heat dissipation due to lighter weight and improved cooling fin design.
Cons:1. Cost: The Vertex Piston 23119100 is pricier than stock pistons due to its high-performance components and materials.
2. Risk of Engine Modifications: Installing aftermarket pistons may require additional engine modifications to ensure optimal performance and maximum safety. This could include adjustments to the crankshaft or head gasket.
3. Installation Complexity: Compared to the stock piston, the installation of an aftermarket piston is more complex and may require professional assistance. Moreover, improper installation may lead to engine damage.
Conclusion:In conclusion, the Vertex Pistons 23119100 is a potentially valuable upgrade for Yamaha YZ 125 motorcycles. It brings about significant performance improvements, enhanced durability, and better temperature management. However, these benefits come with additional cost, complexity in installation, and a need for potential engine modifications.
Recommendation:If you are a recreational rider or a beginner, it might be more practical to stick with the stock piston for its simplicity and lower cost. However, for racing enthusiasts or those seeking improved performance, the Vertex Pistons 23119100 would be a worthwhile investment, given the potential power output and durability enhancements. It is essential to carefully consider the other factors, such as cost and installation complexities, before making a decision. Additionally, we strongly recommend professional assistance during installation to guarantee safety and optimal performance.
Vertex Big Bore Piston 1mm 54.95mm Yamaha YZ 125 2005 -2018: All Pistons are heat-treated with a T-5 hardening and tempering cycle. Kits include piston, rings, wrist pin and cir clips. All piston skirts are coated with a high-tech Molybdenum Sulphate coating for faster break-in time and increased life. Big Bore Pistons increase engines displacement, torque, and peak horsepower.