Carrillo RS1MGNHD-4075 CPP Piston Ring Set 40.75mm Bore

The Carrillo RS1MGNHD-4075 is a CPP (Custom Pro Piston) piston ring set engineered for high-performance and racing powersports applications. Designed to complement Carrillo's lineup of forged pistons and connecting rods, this ring set delivers the precise fitment and durability demanded by competitive engines operating under extreme conditions.

Key Features:

• Bore Size: 40.75mm — precision-ground for tight tolerances and optimal sealing
• Gas Nitrided Hard Chrome (MGNHD) coating for exceptional wear resistance and heat tolerance
• Engineered for high-RPM and high-boost powersports and motorcycle racing applications
• Precision manufacturing ensures consistent ring gap and tension for maximum compression retention
• Compatible with Carrillo CPP forged piston assemblies
• Optimized face geometry reduces friction while maintaining superior cylinder sealing
• Built to withstand the thermal and mechanical stress of forced induction and naturally aspirated racing engines

Carrillo Industries has been a trusted name in motorsport for decades, supplying connecting rods, pistons, and complementary components to professional racing teams worldwide. The RS1MGNHD-4075 ring set upholds that legacy of precision and performance, making it the ideal choice for builders seeking OEM-quality replacement or performance upgrade rings for small-bore powersports engines.