Beta RR 390 4 T Enduro EFI Racing [2016] - Complete Top End Kit - Replica forged pistons

VERTEX Top End Kit with forged replica piston

The VERTEX complete kit for the upper engine area supports the overhaul of the engine of the Beta RR 390 4 T Enduro EFI Racing from 2016. It bundles the top end components relevant for the replacement, thereby making it easier to put together the required parts.

Function and execution

The piston is made of aluminum and is forged. The standard piston compression supports a design that is close to the original. The piston diameter is 87.97 mm; the bore diameter is given as 88.00 mm. The version bears the oversize letter B and has an oversize of +0.01.

Technical data

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 87.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 88.00 mm
• Rings Quantity: Set
• Stroke: 4T

Scope of delivery

• Piston
• Piston rings
• Piston pin
• safety clips
• Top end gasket kit
• Timing chain for the four-stroke version

Vehicle assignment

The top end kit is assigned to the Beta RR 390 4 T Enduro EFI Racing, built in 2016. The information on diameter, bore and oversize makes it easier to compare before selecting and overhauling the engine.