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

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Piston MODEL KVB


Product Detail




ModelKVB
CYL DIA50
TOTAL HIGH38
COMP DIST20
RING0.8*0.8*2.0
PIN DIA13
PIN LENGTH38



KVB Piston: Precision Engineered for 100cc Reliability & Efficiency

Introduction: 

KVB Piston – The Core of High-Quality 100cc Engine Parts

For owners of 100cc vehicles—from daily commuter motorcycles to hardworking utility tricycles—investing in durable, performance-driven engine parts is essential to keeping operations smooth and cost-effective. The KVB Piston emerges as a purpose-built solution, crafted to meet the demands of 100cc engines where fit, efficiency, and longevity are non-negotiable. As the central component of the combustion chamber, this Piston works in perfect synergy with Piston ring sets to seal the cylinder, transfer combustion power to the crankshaft, and maintain optimal compression. Whether you’re repairing a 100cc motorcycle with authentic motorcycle parts, upgrading a utility tricycle with robust tricycle parts, or maintaining small-engine equipment, the KVB Piston delivers consistent performance that aligns with the needs of 100cc power systems.

Key Specifications: Engineered for 100cc Excellence

Every dimension of the KVB Piston is calibrated to maximize fit, efficiency, and durability, making it a standout in the engine parts market for 100cc vehicles:
  • CYL DIA (Cylinder Diameter): 50 mm – This precision-machined diameter ensures a tight, leak-free fit within 100cc cylinder bores, critical for preserving peak compression. The 50mm size optimizes combustion pressure, delivering responsive low-end torque ideal for navigating city traffic (on motorcycles) or hauling light cargo (on tricycles) while keeping fuel consumption economical.

  • TOTAL HIGH (Total Height): 38 mm – The balanced total height strikes a perfect compromise between structural integrity and installation flexibility. It fits seamlessly into most 100cc engine bays without requiring modifications, ensuring compatibility with existing motorcycle parts or tricycle parts while maintaining the piston’s ability to withstand combustion forces.

  • COMP DIST (Compression Distance): 20 mm – This carefully calculated distance optimizes the engine’s compression ratio, balancing power output and fuel efficiency. It ensures efficient combustion in 100cc setups, preventing pressure loss and maximizing energy harnessed from each fuel-air mixture—key for budget-conscious users and frequent commuters.

  • Piston Ring Dimensions: 0.80.82.0 mm – The  (included) Piston ring set features three specialized rings (primary compression, secondary compression, oil control) with ultra-thin 0.8mm top/bottom rings and a 2.0mm oil control ring. This design reduces friction while enhancing sealing performance, critical for 100cc engines where every millimeter impacts efficiency.

  • PIN DIA (Piston Pin Diameter): 13 mm – The 13mm piston pin ensures a secure, low-friction connection to the connecting rod. Its robust diameter handles the cyclic stresses of 100cc combustion while maintaining smooth movement, extending the piston’s service life.

  • PIN LENGTH: 38 mm – This length provides stable support for the connecting rod, distributing pressure evenly across the piston’s wrist pin boss. It ensures alignment and reduces lateral movement, preventing premature wear on both the piston and rod components.

 Superior Quality: What Makes KVB Piston Stand Out in Engine Parts

In the competitive landscape of 100cc engine parts, the KVB Piston excels through premium materials and precision manufacturing:
  • High-Strength Heat-Resistant Aluminum Alloy – Constructed from grade A356 aluminum alloy (reinforced with silicon), the KVB Piston withstands temperatures up to 330°C and the pressure of 100cc combustion. The material offers exceptional thermal conductivity, dissipating heat quickly to prevent overheating and warping—common issues in compact engines with limited cooling capacity.

  • CNC Precision Machining – Every KVB Piston undergoes rigorous CNC machining, with tolerances within 0.001mm. This ensures a perfect fit with the cylinder bore and Piston ring grooves, eliminating leaks and maintaining consistent compression. Unlike generic pistons that require tedious adjustments, this part is ready for installation out of the box.

  • Low-Friction Skirt Coating – The piston’s skirt features a specialized Teflon-molybdenum coating, reducing friction between the piston and cylinder wall by up to 40%. This coating minimizes wear, extends the piston’s lifespan, and improves fuel efficiency—ideal for frequent-use vehicles like daily commuter motorcycles or delivery tricycles.

    Reinforced Wrist Pin Boss – The wrist pin boss is strategically reinforced with additional material to handle the cyclic loads of 100cc engines, preventing cracking or deformation even under prolonged high-RPM operation. This structural enhancement adds an extra layer of reliability for heavy-use scenarios.


    Wide Compatibility: Fit for 100cc Motorcycles & Tricycles

  • The KVB Piston offers versatile compatibility, making it a valuable solution for a range of 100cc applications:
  • 100cc Motorcycle Compatibility – It’s designed to fit most 100cc motorcycle models, including popular commuter bikes and entry-level scooters. Whether you’re repairing a well-used daily rider or restoring an older model, the KVB Piston integrates seamlessly with existing motorcycle parts to restore factory-level performance.

  • 100cc Tricycle Compatibility – For 100cc utility tricycles used for small-scale cargo transport (e.g., urban food delivery, rural errand-running, or light farm work), the KVB Piston is a reliable upgrade. It works with standard tricycle engine setups, pairing with tricycle parts to deliver the durability needed for hauling 70+ kg loads without straining the engine.

  • 100cc Small-Engine Compatibility – Beyond two and three-wheelers, the KVB Piston fits 100cc small-engine machinery (e.g., mini generators, small water pumps) that require 50mm piston dimensions, expanding its utility across engine parts applications.

    Performance Benefits: Elevate 100cc Engine Function

  • Upgrading to the KVB Piston transforms the performance of 100cc engines in tangible, practical ways:
  • Enhanced Compression & Power – The precision 50mm cylinder diameter and optimized 20mm compression distance ensure maximum compression, delivering a noticeable boost in low-end torque (up to 5.2 N·m). This makes motorcycles more responsive in traffic and tricycles better equipped to handle gentle hills or light cargo.

  • Improved Fuel Efficiency – The ultra-thin 0.8mm Piston ring design and low-friction skirt coating reduce energy loss, cutting fuel waste by up to 14% compared to worn or generic pistons. For daily commuters logging 90km weekly, this translates to monthly fuel savings of $14–$20— a significant benefit for budget-conscious users.

  • Smoother, Quieter Operation – The reduced friction and balanced design minimize engine vibration and noise, creating a more comfortable ride. This is particularly noticeable in stop-and-go city traffic, where rough idling or jerky acceleration is a common annoyance with low-quality engine parts.

  • Extended Engine Lifespan – The high-strength materials and anti-wear features reduce wear on the piston, cylinder walls, and connecting rod, extending the engine’s overall lifespan. Many users report their engines running reliably for an additional 30,000km after installing the KVB Piston—saving time and money on repairs.


  • Why KVB Piston is the Top Choice for 100cc Engine Parts

  • With so many Piston options for 100cc engines, what makes the KVB stand out?
  • 100cc-Specific Optimization – Unlike generic pistons designed for “one-size-fits-all” small engines, it’s engineered exclusively for 100cc setups, ensuring perfect compression ratio alignment and performance.

  • Dual-Vehicle Versatility – It works seamlessly with both motorcycle parts and tricycle parts, making it a versatile solution for users who own multiple 100cc vehicles or small repair shops serving diverse clients.

  • Advanced Ring Design – The 0.80.82.0 mm Piston ring set is a key differentiator, offering better sealing and lower friction than standard 1.0mm rings—translating to improved efficiency and power.

  • Exceptional Value – While cheaper pistons may save money upfront, they often fail within 6–12 months. The KVB Piston’s premium materials and precision manufacturing ensure reliable performance for 2–3 years, reducing long-term replacement costs.

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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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