NMW Racing High-Compression Cylinder Kit (89mm)
Compatibility: KTM RC 390 / Duke 390 / Adventure 390 (Gen 1 & Gen 2)
Unleash the full potential of your 373cc engine. This NMW Racing kit maintains the stock 89mm bore but utilizes a precision-engineered Forged High-Compression Piston to significantly improve thermal efficiency and power delivery.
Technical Specifications
| Feature | Specification |
| Bore Diameter | 89mm (Stock Size) |
| Piston Type | Premium Forged Alloy |
| Piston Crown | +1mm High-Compression Dome |
| Valve Pockets | +1mm Depth / +1mm Width |
| Compatibility | Supports High-Lift Cams & Over-sized Valves |
| Engine Fitment | All 390 LC4c Platforms (Gen 1 & Gen 2) |
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