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Piston JH70
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Piston JH70

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Piston MODEL JH70


Product Detail




Model JH70
CYL DIA 47
TOTAL HIGH 41.15
COMP DIST 19.15
RING 1.0*1.0*2.0
PIN DIA 13
PIN LENGTH 38


JH70


Optimize 70cc Engine Performance with Piston:JH70 – Premium Engine Parts for Motorcycles & Tricycles

Introduction: Piston:JH70 – The Heart of Reliable 70cc Engines

In the landscape of engine parts, the piston is the critical component that transforms fuel combustion into usable mechanical power—especially vital for 70cc engines, which are trusted worldwide for their fuel efficiency and daily usability. The Piston:JH70 stands out as a top-tier solution in the world of motorcycle parts and tricycle parts, engineered exclusively to match the exact specifications of JH70 engine models. Whether you’re repairing a JH70 commuter motorcycle, maintaining a small-scale JH70-powered tricycle, or restoring an aging 70cc engine, this piston delivers consistent power, minimizes wear, and ensures long-term reliability. For anyone seeking durable, high-performance engine parts for JH70 systems, the Piston:JH70 is the ultimate choice to keep engines running at their peak.

Key Specifications of Piston:JH70 – Precision Crafted for Perfect Compatibility

Every dimension of the Piston:JH70 is calibrated to meet the unique demands of JH70 engines, eliminating fitment issues and guaranteeing optimal functionality. Below are the critical specs that set this piston apart from generic engine parts:

 Model: JH70 – A Benchmark for 70cc Engine Fitment

The JH70 model designation is more than a label—it’s a guarantee of seamless integration with 70cc engines designed for daily use. This piston is specifically engineered to fit JH70 engine series, which are widely used in entry-level commuter motorcycles (ideal for urban and rural travel) and lightweight utility tricycles (common in small-scale delivery or farming). For mechanics and vehicle owners, this means zero guesswork during installation: the piston aligns flawlessly with JH70 cylinder walls, connecting rods, and other components, avoiding the costly mistakes that come with mismatched motorcycle parts or tricycle parts. As a trusted name in 70cc engine parts, the Piston:JH70 streamlines repairs and ensures your JH70 engine operates as intended.

 CYL DIA: 47 – Optimizing Combustion for 70cc Power

With a cylinder diameter (CYL DIA) of 47mm, the Piston:JH70 is engineered to maximize combustion efficiency in 70cc engines. This precise diameter creates an ideal volume for air-fuel mixture compression, striking a balance between responsive low-end torque (essential for tricycles carrying light loads) and smooth, fuel-efficient high-speed performance (critical for motorcycle commutes). Unlike oversized or undersized pistons in generic engine parts, the 47mm diameter preserves the JH70 engine’s factory-tuned power band—ensuring consistent acceleration without wasting fuel. This makes it a superior choice for 70cc motorcycle parts and tricycle parts.

 TOTAL HIGH: 41.15 – Stability That Reduces Vibration & Wear

The total height (TOTAL HIGH) of 41.15mm is a critical factor in the piston’s ability to maintain stability during JH70 engine operation—especially important for vehicles that run for hours daily (like daily-commute motorcycles or delivery tricycles). This dimension ensures the piston fits snugly within the JH70 engine block, maintaining consistent clearance with the cylinder head and crankshaft. A stable piston minimizes vibration (reducing rider fatigue in motorcycles and component stress in tricycles), lowers friction between moving parts, and prevents premature wear—key benefits for motorcycle parts and tricycle parts that endure frequent use. The 41.15mm height also avoids interference with valve trains or piston skirts, extending the overall lifespan of your JH70 engine.

COMP DIST: 19.15 – Fine-Tuning Compression for 70cc Efficiency

Compression distance (COMP DIST) of 19.15mm plays a pivotal role in defining the JH70 engine’s compression ratio—and the Piston:JH70 is calibrated to perfection for 70cc performance. A 19.15mm compression distance optimizes the engine’s compression ratio, enhancing fuel combustion (reducing fuel consumption by up to 11% compared to mismatched pistons), lowering harmful emissions, and boosting mid-range power. This is particularly valuable for JH70 motorcycles (which need efficient fuel use for long daily rides) and JH70 tricycles (which require steady power for hauling small loads). As a result, this piston stands out among engine parts that prioritize both 70cc performance and environmental compliance.

 RING: 1.01.02.0 – Durable Piston Ring for 70cc Longevity

No piston is complete without a reliable piston ring, and the Piston:JH70 comes equipped with a 1.0mm1.0mm2.0mm piston ring set—engineered for the unique demands of JH70 engines. Crafted from heat-resistant alloy steel with a nickel-plated surface, this piston ring creates an airtight seal between the piston and cylinder wall, preventing oil leakage into the combustion chamber (avoiding smoke and reduced efficiency) and ensuring maximum compression. Unlike thin, low-quality rings in generic engine parts that wear out quickly, the 1.0mm/2.0mm design withstands temperatures up to 240°C and resists corrosion—making it durable enough for daily use in JH70 motorcycles and tricycles. It also requires minimal maintenance, reducing long-term repair hassle.

Versatile Applications – Ideal for JH70 Motorcycles & Tricycles

One of the greatest strengths of the Piston:JH70 is its versatility across 70cc vehicles. As a core component in both motorcycle parts and tricycle parts, it fits a wide range of JH70-powered vehicles, including:
  • Urban commuter motorcycles: Perfect for short-to-long daily rides (10–80 km), where fuel efficiency and easy handling are top priorities.

  • Lightweight JH70 tricycles: Designed to haul loads up to 400kg (common in local delivery, small farming, or rural transportation), ensuring the engine maintains steady power.

  • Utility JH70 engines: Used in off-road mini-tricycles or small work vehicles, where durability in rough terrain (dirt roads, gravel paths) is essential.

    No matter the application, the Piston:JH70 integrates seamlessly with JH70 engines, making it a one-stop solution for all your 70cc engine parts needs.

 PIN DIA: 13 & PIN LENGTH: 38 – Robust Power Transfer for JH70 Engines

The piston pin (wrist pin) is the vital link between the piston and connecting rod, and the Piston:JH70 features a pin with a diameter (PIN DIA) of 13mm and length (PIN LENGTH) of 38mm—optimized for the moderate yet consistent forces of JH70 70cc engines. The 13mm diameter provides exceptional strength to handle combustion pressure, while the 38mm length ensures a secure fit with JH70 connecting rods. This design guarantees smooth power transfer to the crankshaft, avoiding slippage or breakage even during extended use. For engine parts that need to endure daily commutes or light hauling, this piston pin is a mark of unmatched reliability for JH70 systems.
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 Email: VivianTian86@hotmail.com
 WhatsApp: +86-173-8479-7166
Tel: +86-186-2330-4355
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Tel: +86-166-2336-3392
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