9938690 Top Performances 180 D.63 aluminum cylinder kit for Minarelli/Yamaha 125 E4/E5 engines

The TOP Performances 180cc Ø63 cylinder kit for Minarelli / Yamaha 125 4T 4V Euro 4 / Euro 5 engines is a high-performance upgrade designed to significantly increase engine displacement, torque and power output. Developed for sporty applications and riders seeking enhanced performance from their 125 four-stroke engine, this kit converts the engine into a 180 cc configuration, delivering stronger acceleration and improved power delivery throughout the rev range.

The cylinder with Ø63 mm bore is engineered to improve combustion efficiency and optimize airflow inside the engine. The increased displacement provides higher torque at low and mid-range RPM, resulting in better acceleration and stronger throttle response compared to the standard engine setup.

The kit includes a complete Ø63 mm piston, piston rings, wrist pin with clips and full gasket set, ensuring all essential components required for installation. A dedicated ECU unit with wiring harness is also included to optimize ignition management and adapt engine operation to the increased displacement.

Compatible with Fantic, Vent and Rieju motorcycles equipped with Minarelli/Yamaha 125 4T 4V Euro 4 and Euro 5 engines, the TOP Performances 180 Ø63 cylinder kit is a complete solution for riders looking to improve engine performance, acceleration and throttle response while maintaining the reliability and quality associated with TOP Performances products.

Caratteristiche tecniche:

• Brand: TOP Performances
• Product: Big bore cylinder kit
• Compatibility: Minarelli / Yamaha 125 4T 4V Euro 4 / Euro 5 engines
• Applications: Fantic - Vent - Rieju
• Cylinder bore: Ø63 mm
• Resulting displacement: 180 cc

Included components:

• Ø63 mm cylinder (without CDI)
• Ø63 mm complete piston
• Ø63 mm piston ring set
• Complete gasket set
• Piston pin + circlips
• Dedicated ECU unit
• ECU wiring harness
• CDI rubber support