Pedal motorcycle engine piston kit including piston, piston ring, and piston pin for 57.4mm cylinder diameter with aluminium alloy construction and steel strip combined oil ring design
Complete motorcycle engine piston kit for 57.4mm cylinder diameter applications

This motorcycle piston assembly provides a replacement solution for engines requiring a 57.4mm bore size with 37mm total piston height. The kit includes all necessary components for piston replacement - the aluminium alloy piston body, combination piston ring set featuring a steel strip oil ring design, and the connecting piston pin. Designed as a direct replacement part rather than a performance upgrade, it serves the practical need for engine maintenance and rebuild projects where the original specifications match these measurements.
Features and Construction

The piston kit follows conventional small engine design principles with measurements that determine its specific application range. The construction materials and dimensions provide clear parameters for compatibility checking before purchase.
Material and Build
The piston body utilises aluminium alloy construction, which represents the standard material choice for many small motorcycle engines due to its balance of weight and thermal properties. This conventional approach ensures compatibility with typical engine designs without specialised requirements. The piston ring set employs a combination structure that includes a steel strip combined oil ring, providing the necessary sealing and oil control functions for proper engine operation.
Size and Practical Fit
With a specified cylinder diameter of 57.4mm and total piston height of 37mm, these measurements create clear boundaries for proper installation. The 57.4mm bore dimension determines which engines this piston will physically fit, while the 37mm height affects compression ratio and deck clearance calculations. These two measurements together define the primary compatibility requirements that must be verified against your engine's specifications.
Uses and Placement

This piston kit serves specific maintenance and repair scenarios where dimensions match and replacement is required. Understanding its intended applications helps determine whether it addresses your particular engine needs.
Event or Professional Use
For motorcycle mechanics and workshop professionals, this piston kit provides a standard replacement option when servicing engines with matching 57.4mm bore specifications. The complete package containing piston, rings, and pin reduces sourcing time compared to purchasing components separately. The conventional aluminium alloy construction and combination ring design make it suitable for routine engine rebuilds where maintaining original specifications is the priority rather than performance enhancement.
Everyday Home Use
For motorcycle owners undertaking their own maintenance projects, this kit simplifies the process by providing all necessary piston components together. The clearly stated 57.4mm cylinder diameter and 37mm height allow for straightforward compatibility checking against engine manuals or existing components. Having the piston, rings, and pin included eliminates the risk of missing critical elements during reassembly, provided all other required gaskets and seals are sourced separately.
Benefits and Buying Value

The practical advantages of this piston kit relate directly to its complete nature and clearly stated specifications, which support informed purchasing decisions for specific engine requirements.
Reuse and Low Maintenance
As a replacement component rather than a consumable item, this piston kit extends engine life when installed correctly in compatible applications. The aluminium alloy construction follows standard practices that don't require specialised maintenance approaches beyond normal engine care. The steel strip oil ring design represents conventional technology that functions adequately within its intended operating parameters when installed with proper clearances.
Why Choose This Product
This piston kit offers a practical solution when you've verified that your engine requires these specific 57.4mm bore and 37mm height dimensions. The complete package approach reduces the risk of incompatible components since all elements are designed to work together. For standard engine rebuilds where maintaining original specifications matters more than performance gains, this conventional aluminium alloy piston with combination rings provides a functional replacement option.
