METEOR Piston Kit for BETA RR 300, XTRAINER 300 2022-2026

METEOR offers this piston kit for BETA RR 300, XTRAINER 300 2022-2026. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why replace the piston?

The benefits:

• Restore compression, power and easy starting.
• A piston of the right size keeps the intended clearance in the cylinder: less noise and less oil consumption.
• A new piston with rings, pin and clips: nothing to reuse from the old one.

Why choose METEOR?

Meteor is an Italian piston manufacturer; its Racing range covers 2- and 4-stroke motocross and enduro engines, with pistons offered in several sizes to match the actual cylinder bore.

When should you replace the piston on your BETA RR 300?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 20 h in hard use and every 40 h for leisure.

Specifications and fitting tips

• Manufacturer part numbers: PC2888A (A), PC2888B (B), PC2888C (C)

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: A = 72.95 mm, B = 72.96 mm, C = 72.97 mm.

Spare parts and items to plan

• Piston rings : VERTEX 3030333 · VERTEX 53010007200
• Top-end gasket kit : ATHENA S4100600060 · ATHENA P400060600014
• Small end needle bearing : PROX · ATHENA
• Spark plug : NGK 95476 · NGK 5122
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• 2-stroke oil : LIQUI MOLY 1 L 3065 · LIQUI MOLY 1 L 3063

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
BETA RR 300 2026
BETA RR 300 2025
BETA RR 300 2024
BETA RR 300 2023
BETA RR 300 2022
BETA XTRAINER 300 2022