Minarelli 47.6mm Piston Kit

47.6mm Piston Kit for Minarelli 50cc Engines

This piston set is made for 50cc 2-stroke Minarelli engines and is meant to help boost performance. It comes with a single-ring PTFE piston that works with the Hoca Ceramic Big Bore Racing Kit, which has a Nikasil coating. It belongs to the Minarelli 50cc / Yamaha jog scooter parts range and can noticeably affect how an engine responds and how high it revs.

Piston Construction

The piston measures 47.6mm across (excluding the ring) and has a PTFE coating that helps cut down on friction and wear. The single compression ring is built for higher RPM use, so it suits racing or performance builds. The overall height is 50.5mm, which is sized to sit properly inside the cylinder.

Installation and Usage

Fitting this kit is simple for anyone already comfortable working on scooters. The package includes a 10mm wrist pin, a wrist pin bearing, circlips, and the compression ring. This part is not approved for public road use, so it is best used in racing or on closed circuits where performance is the main goal.

Specifications

• Size: 47.6mm Diameter
• Compression Height: 25.5mm
• Wrist Pin Diameter: 10mm
• Overall Height: 50.5mm
• Fits: 50cc 2-stroke Minarelli engines, for use with Hoca Ceramic Big Bore Racing Kit (47.6mm)

Fitment

Fits:

• Minarelli 50cc 2-stroke engines (with Hoca Ceramic Big Bore Racing Kit, 47.6mm bore)
• 40QMB 50cc 2-stroke

How to choose: Make sure the cylinder bore is 47.6mm, the wrist pin is 10mm, and the cylinder overall height is 50.5mm.

Shop more: Minarelli 50cc / Yamaha Jog Parts · Scooter Pistons & Piston Rings · Scooter Parts