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Engine and geometry发动机与结构
Cylinder head, bore, stroke, rod length, compression ratio, valve and camshaft information.缸头、缸径、行程、连杆长度、压缩比，以及气门与凸轮轴信息。
Explore this detail进一步了解 ↗START A PROJECTSTART A PROJECT
Tell us what
you have in mind.告诉我们，
您的定制想法。
Start with the information you have. Technical details can follow.从已掌握的信息开始，技术细节可以逐步完善。
PROJECT SPECIFICATION项目技术需求
Bring the details that shape the design.提供影响设计的关键信息。
02
Material and component package材料与配套方案
Required alloy, pin specification, ring pack, skirt treatment, installation clearance and quantity. Confirm the final package before production.所需合金、活塞销、环组、裙部处理、装配间隙及数量，生产前确认最终方案。
Explore this detail进一步了解 ↗RING PACKAGE & OIL CONTROL环组与机油控制
Match the ring pack to the piston.让环组，与活塞协同。
Steel top ring. Napier second ring.钢制顶环 · Napier 第二环
Applicable standard ring packages use a steel top ring, a Napier second ring and a 3 mm oil ring, balancing friction reduction and oil control.适用的标配环组采用钢制顶环、Napier第二环及3mm油环，兼顾降低摩擦与机油控制。
Groove detail matters关注槽形细节
Anti-detonation grooves help keep the top-ring groove clean. Ring selection and groove dimensions are developed as a matched specification.抗爆震槽有助于保持顶环槽清洁，环组选择与环槽尺寸按匹配的技术规范开发。
Matched and pre-packaged匹配与预包装
Selected products are matched and pre-packaged to reduce selection time and the risks of combining incompatible components. Street and track-day packages focus on convenient installation and long-term durability.部分产品经过匹配与预包装，降低自行拼配的时间成本与不匹配风险。街道及赛道日应用方案，关注装配便利性与长期耐用性。
Features vary by model and application. Final alloy, components, clearances and installation requirements follow the confirmed product specification. Horsepower examples describe specific project configurations, not a universal piston rating.特点与配置因型号及应用而异。材料、配套件、间隙与装配要求以确认的产品技术规范为准；马力示例对应特定项目配置，并非全部活塞的通用额定值。