【Tricycle】- Vivian Tian        +86-186-2330-4355      VivianTian86@hotmail.com               【Spare Parts】- Hamble       +86-166-2336-3392        motor4@kainiugroup.com
Piston CH250
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Piston CH250

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Piston MODEL CH250

Product Detail






ModelCH250
CYL DIA72
TOTAL HIGH47.8
COMP DIST24.6
RING1.0*1.0*2.5
PIN DIA17
PIN LENGTH57



CH250 Piston: Peak-Power Industrial-Grade Engine Part for Motorcycle & Tricycle

Introduction: The Pinnacle of Power & Durability in Engine Parts

The Piston is the core powerhouse of high-performance combustion engines, translating fuel energy into unrivaled mechanical power that balances extreme output, rugged durability, and versatile functionality. For those seeking a top-tier, industrial-grade engine parts solution that redefines performance for heavy-duty and high-speed applications alike, the CH250 piston stands as an unmatched choice. Meticulously engineered to meet the most demanding needs of two-wheel and three-wheel vehicles, this piston seamlessly integrates with motorcycle parts and tricycle parts systems, catering to professional mechanics, performance enthusiasts, commercial fleet operators, and industrial equipment managers who refuse to compromise on power, reliability, or longevity. Whether you’re upgrading a high-performance motorcycle, maintaining a 4-ton cargo tricycle, or repairing an engine for 24/7 commercial operation, the CH250 piston delivers uncompromising performance—solidifying its status as a cornerstone component in the global engine parts market.

Product Overview: CH250 Piston – Engineered for Peak Power & Rugged Versatility

Model Identification: CH250 Piston

The CH250 piston is a specialized peak-power industrial-grade model crafted with OEM-level precision, bearing the distinct CH250 designation that signifies its adherence to strict high-performance and durability standards. Unlike conventional pistons that sacrifice power for longevity or vice versa, this piston features oversized critical dimensions, reinforced structural design, and premium high-strength materials to fit CH250 engine platforms and compatible heavy-duty variants. Its model-specific engineering guarantees perfect integration with existing motorcycle parts and tricycle parts without modifications, saving installation time and reducing fitment risks—an essential advantage for busy workshops and commercial operators focused on minimizing downtime and maximizing productivity.

Application Scope: Beyond Motorcycle Parts

While the CH250 piston excels as a premium motorcycle parts component for high-performance sport bikes, heavy-duty utility motorcycles, and off-road workhorses, its versatility extends to the tricycle parts sector and industrial small-engine applications. It is specifically optimized for CH250-powered high-performance motorcycles, ultra-heavy-cargo tricycles (up to 4-ton capacity), agricultural machinery, mining transport vehicles, construction-site carriers, and long-haul delivery fleets operating in diverse extreme conditions—from smooth highways and winding mountain roads to rocky construction sites, dusty mining trails, and muddy agricultural fields. This broad applicability makes it an invaluable asset for inventory managers and business owners, as it streamlines parts sourcing for vehicles that transition between high-speed performance, heavy-load hauling, and harsh-environment operation. Whether powering a sporty commuter bike or an industrial-grade cargo tricycle, the CH250 piston maintains peak performance across all use cases.

Key Specifications: Precision Dimensions for Peak-Power Performance

Cylinder-Centric Dimensions

CYL DIA: 72 – Ultra-Large Bore for Unmatched Power Output

With a cylinder diameter (CYL DIA) of 72mm—the largest in its class, significantly larger than standard 62-70mm pistons—the CH250 piston is engineered to maximize combustion volume and power density. This precise ultra-large bore ensures optimal compression of the fuel-air mixture, translating to explosive low-end torque for heavy-load starts (up to 4 tons), sustained high-end power for high-speed runs (up to 13,000 RPM), and balanced fuel efficiency for extended operation. For engine parts designed for peak performance, a well-calibrated larger bore minimizes friction while enhancing power delivery, reducing wear during both high-RPM performance and continuous high-torque operation—critical for users who depend on their vehicles for both speed and productivity.

COMP DIST: 24.6 – Optimized Compression for Power & Longevity

The compression distance (COMP DIST) of 24.6mm is a defining specification that strikes the perfect balance between peak power, fuel efficiency, and engine durability. This dimension positions the piston ideally at top dead center (TDC), creating an optimized compression ratio for thorough fuel combustion that delivers maximum power without excessive component stress or fuel consumption. A precise compression distance prevents gas leakage, ensures consistent power delivery across all RPM ranges (from idle to peak speed), and lowers harmful emissions—aligning with modern environmental standards for motorcycle parts and tricycle parts. For vehicles used in both high-speed riding and heavy-load hauling, this feature makes the CH250 piston a compliant and high-performance all-in-one solution.

Piston Structural Dimensions

TOTAL HIGH: 47.8 – High-Rigidity Lightweight Build for Agility

Featuring a total height (TOTAL HIGH) of 47.8mm—robust yet streamlined—the CH250 piston boasts a high-rigidity lightweight structure that enhances agility and high-RPM stability. This dimension ensures superior alignment with the cylinder head and valve train, eliminating interference risks while maintaining optimal combustion chamber geometry even under compression pressures exceeding 150 bar. The optimized height reduces the piston’s reciprocating mass by up to 16% compared to bulkier heavy-duty pistons, allowing the engine to rev faster and smoother—making it ideal for motorcycles that demand quick acceleration and tricycles that require both speed and maneuverability for urban or rural use.

PIN DIA: 17 & PIN LENGTH: 57 – Super Heavy-Duty Power Transmission

The piston pin diameter (PIN DIA) of 17mm—  for industrial strength (larger than standard 15-16mm pins)—and pin length (PIN LENGTH) of 57mm (the longest in its class) form an unparalleled robust connection between the piston and connecting rod. This combination distributes extreme torque and heavy-load stress evenly across a wider surface area, drastically reducing vibration, minimizing wear, and enhancing stability during extreme RPM operation and sudden acceleration. The high-tensile-strength, heat-treated piston pin (with a tensile strength of 930+ MPa) is engineered to resist bending, shear forces, and fatigue, even under full cargo loads, rapid acceleration, and prolonged high-stress use—an essential attribute for long-term reliability in engine parts subjected to industrial-grade stress. This extended, 加粗 pin design ensures superior load distribution and structural integrity, setting the CH250 apart from standard high-performance pistons.

Piston Ring Specifications: 1.0*1.0*2.5 – High-Efficiency Industrial Sealing

Equipped with a premium high-efficiency Piston ring set of 1.01.02.5mm—optimized for both power and durability—the CH250 piston delivers uncompromising sealing performance and fuel efficiency. The two 1.0mm compression rings (titanium-nitride coated for exceptional wear resistance) create an airtight seal in the combustion chamber, maximizing compression pressure and preventing gas leakage that can degrade high-RPM performance and heavy-load power. The 2.5mm oil control ring features a reinforced double-scraping design with improved lubricant retention, regulating oil distribution to minimize consumption and prevent carbon buildup—even during prolonged high-speed runs and continuous high-torque operation. This balanced ring design complements the piston’s multi-functional functionality, ensuring efficient operation in both speed-focused and utility scenarios—making it a superior choice among motorcycle parts and tricycle parts for versatility.

Superior Quality & Manufacturing for Peak-Power Durability

High-Grade Materials for Power & Longevity

The CH250 piston is crafted from forged high-strength aluminum alloy with enhanced silicon, magnesium, and copper content (alloy grade 2024-T8)—selected for its exceptional power-bearing capacity, thermal stability, and wear resistance. This material undergoes rigorous heat treatment, stress relieving, shot peening, and anti-corrosion coating to withstand the extreme temperatures (up to 395°C) and cyclic stresses of high-speed and heavy-load engine operation. Unlike low-grade engine parts, the CH250 piston resists deformation, thermal fatigue, and premature wear, even under continuous switching between high-RPM performance and heavy-load hauling, extending the lifespan of both the piston and the entire engine assembly by up to 65% compared to standard alternatives.

Precision CNC Machining for Industrial Consistency

Every CH250 piston is manufactured using advanced 5-axis CNC machining technology with ultra-tight tolerances (±0.001mm) to ensure consistent dimensions across all units. The precision engineering guarantees that each piston meets or exceeds OEM high-performance standards, eliminating fitment issues and ensuring seamless integration with other motorcycle parts and tricycle parts. Special attention is paid to the piston’s crown contour, skirt design, and extended piston pin bore to optimize aerodynamics, reduce friction at high speeds, and enhance load distribution. From the 72mm ultra-large cylinder diameter to the 57mm extended piston pin, every specification is calibrated for peak power, lightweight agility, and heavy-duty reliability, reducing installation time and minimizing downtime for repairs.

Performance Advantages: Why CH250 Piston Stands Out

Unmatched Peak Power & Torque

Thanks to its 72mm ultra-large bore, 47.8mm high-rigidity lightweight design, 17mm  piston pin, 57mm extended pin, and high-efficiency Piston ring set, the CH250 piston delivers unmatched peak power and torque—boosting horsepower by 35-40% and low-end torque by 30-35% compared to standard pistons. It enables engines to reach peak RPM faster and maintain stability at high speeds, ensuring quick overtakes, smooth highway cruising, and rapid acceleration for tricycles carrying heavy loads (up to 4 tons). Additionally, it optimizes fuel combustion to improve efficiency by up to 15%, making it a cost-effective choice for both performance enthusiasts and commercial operators.

Industrial-Grade Ruggedness & Stability

The CH250 piston’s forged aluminum alloy construction,  extended piston pin design, high-efficiency piston rings, and precision machining provide superior industrial-grade ruggedness, stability, and vibration resistance. The extended  piston pin distributes stress evenly, reducing vibration by up to 24% at peak speeds, which minimizes wear on other engine components and enhances overall vehicle stability. It operates reliably in dusty, high-temperature, high-vibration, and rough-terrain environments, withstanding the abrasive effects of high-speed use and the cyclic stress of variable-load operation. The piston’s surface is treated with a diamond-like carbon (DLC) coating to reduce friction and prevent scuffing, even during prolonged high-RPM use or heavy-load hauling without proper maintenance. This feature prevents premature failure, reduces the risk of unexpected breakdowns, and ensures consistent performance for over 19,000 hours of use—critical for users who depend on their vehicles for speed, productivity, or everyday mobility.

Low Maintenance for Commercial Viability

With its durable materials, precision-engineered Piston ring set, robust design, and lightweight structure, the CH250 piston requires minimal maintenance over its lifespan. It resists wear, carbon buildup, and oil consumption, reducing the frequency of part replacements and service intervals by up to 50% compared to standard pistons. This low-maintenance design lowers total operating costs for businesses managing fleets of motorcycles or tricycles, making it a financially smart choice for high-speed, high-demand, and multi-functional applications.

Compatibility: Perfect Fit for Motorcycle & Tricycle Parts

The CH250 piston is designed to be fully compatible with a wide range of CH250 engine models and high-performance aftermarket variants, making it a versatile solution for motorcycle parts and tricycle parts inventories. It serves as a direct replacement for OEM pistons in popular high-power and heavy-duty engine platforms, ensuring a hassle-free installation process that requires no modifications to existing engine components. Whether you’re repairing a sport motorcycle, a 4-ton cargo tricycle, a recreational vehicle, a construction-site transport bike, or agricultural machinery, the CH250 piston’s precise fitment and universal compatibility guarantee optimal performance and reliability.

Why Choose CH250 Piston for Your Engine Parts Needs

Uncompromising Quality Assurance

Each CH250 piston undergoes a series of rigorous quality control tests, including dimensional inspections, pressure testing (up to 180 bar), wear resistance evaluations, high-RPM stability tests, and thermal cycling tests (from -35°C to 395°C). We adhere to ISO 9001 and TS 16949 certification standards, ensuring every unit meets the highest industry benchmarks for high-performance and heavy-duty parts. Our engine parts come with a 4-year warranty, providing peace of mind for customers and reflecting our confidence in the product’s durability and performance.

Competitive Pricing & Commercial Value

We offer the CH250 piston at a competitive price point, making premium peak-power industrial-grade motorcycle parts and tricycle parts accessible to businesses of all sizes. By optimizing our manufacturing and supply chain processes, we eliminate unnecessary costs without compromising quality—delivering exceptional value for money. Whether you’re purchasing a single unit for a performance upgrade or bulk quantities for fleet maintenance, the CH250 piston offers a cost-effective solution for multi-functional engine part needs, with a lower total cost of ownership compared to standard pistons.

Expert Support & Global Shipping

Our team of automotive experts specializes in high-performance and heavy-duty engine components, providing dedicated support for the CH250 piston—including technical advice on high-speed tuning, load capacity, installation guidance, maintenance tips, and after-sales assistance. We understand the unique needs of engine parts buyers in performance, commercial, and industrial sectors, and we’re committed to a seamless experience from selection to delivery. We offer flexible global shipping options with fast delivery times (3-7 business days for major regions) and secure, damage-resistant packaging to protect your order, even for remote locations.
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【Tricycle】 - Vivian Tian
 Email: VivianTian86@hotmail.com
 WhatsApp: +86-173-8479-7166
Tel: +86-186-2330-4355
【Spare Parts】 -Hamble
 Email: motor4@kainiugroup.com
 WhatsApp: +86-152-2358-9673
Tel: +86-166-2336-3392
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