Metrakit Pro Race Engine Casings Derbi Senda / Euro 3 & 4 – Reinforced & Race-Ready

The Metrakit Pro Race casing set (ref. 700C0080) is designed for high-performance tuning and racing applications on Derbi Euro 3 and Euro 4 engines, including Senda, DRD Pro, GPR, Gilera SMT, Aprilia SX, and Valenti Racing.

• Made from high-quality cast aluminum with a brushed grey finish
• Oversized balance shaft needle bearing (HK1816 instead of HK1812)
• More space for large carburetors and V-Force 3 or 4R reed manifolds
• Supports larger crankshafts (bearing OD: 52 mm vs 47 mm original)
• Rear swingarm axle bore expandable to 14 mm without opening engine
• Lighter and more compact due to removal of starter motor
• Fully compatible with original and aftermarket Euro 3/4 components
• Reinforced bearing surfaces for use with 6304 C3 bearings
• Improved thermal conductivity and revised wall thicknesses for durability

Includes casing bolts, alignment bushings, central gasket, and flat oil filler cap. Professional installation required for optimal performance.