ANILLO DE PISTON CRF230 RAYBAR250 65.5MM STD
The ANILLO DE PISTON CRF230 RAYBAR250 65.5MM STD is a piston ring set designed for a specific big-bore engine application.
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Product Introduction
| Specifications | |
| Primary Application: | Designed for modified Honda CRF230F. |
| Top Compression Ring: | The primary gas seal. Often features a premium wear-resistant coating to withstand the increased combustion pressures and heat of a high-compression big-bore setup. |
| Second Compression Ring: | A tapered or Napier-style ring that aids in gas sealing and oil scraping. |
| Oil Control Ring Set: | A modern 3-piece design consisting of two thin chrome-plated steel rails and a spring expander, designed for effective oil control under high engine speeds and loads. |
| Base Material: | Ductile iron or steel for strength and conformability. |
| Coatings: | Common performance coatings include PVD, nitride, or molybdenum facing on the top ring to reduce friction and improve longevity. |
| Applications | |
| This set is intended for use with a 65.5mm standard bore piston, which is commonly found in modified engines where the Honda CRF230F platform has been enlarged to approximately 250cc displacement, often using a "Raybar" or similar big-bore cylinder kit. The term "STD" indicates the standard size for this specific overbore, as opposed to an oversize for a worn cylinder. These rings are precision-engineered to provide the critical seal between the piston and the newly enlarged cylinder wall, ensuring proper compression, oil control, and heat transfer in a high-performance, single-cylinder four-stroke engine. | |
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