The factory-recommended piston diameter for a new or unworn cylinder.
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Disclaimer: This article is for informational purposes. Part numbers and specifications are based on common industry data. Always verify fitment with a physical piston and a micrometer before installation. katalog piston fim
: FIM typically sells these as "Piston Kits," which include the piston itself, piston rings, the piston pin, and circlips. This provides a complete solution for an engine top-end overhaul. Performance and Reliability Features The factory-recommended piston diameter for a new or
FIM is an aftermarket spare part manufacturer specializing in high-quality pistons, piston rings, pins, and clips. Unlike OEM (Original Equipment Manufacturer) parts, FIM focuses on providing durable and often performance-oriented alternatives at a competitive price point. They are particularly famous for their used in cylinder reboring—a common practice in Southeast Asian workshops. Always verify fitment with a physical piston and
Pistons in racing motorcycles operate under extreme mechanical and thermal loads – temperatures exceeding 300°C, accelerations above 10,000 g, and pressures up to 200 bar. The FIM’s technical rules limit piston geometry, mass, materials, and manufacturing methods to prevent excessive performance divergence and maintain safety. However, without a unified reference, interpreting these rules becomes inconsistent across circuits and seasons.