VERTEX Replica Forged Piston for BETA RR 480, RR 480 4T RACE, RR 480 4T X-PRO 2015-2026

VERTEX offers this piston kit for BETA RR 480, RR 480 4T RACE, RR 480 4T X-PRO 2015-2026. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why choose a forged piston?

Instead of simply being cast, a forged piston is hot-pressed under very high pressure and then machined: its metal is denser and free of air pockets.

• Stronger when hot: it copes better with high revs, overheating and detonation.
• Lighter for the same strength: less stress on the connecting rod and bearings.
• Good to know: depending on the alloy, it expands a little more and is fitted with more clearance; slight noise when cold is normal.
• Why does it cost more? Forging tools, full machining and surface treatments cost more than simple casting.

Why choose VERTEX?

Vertex has made its pistons in Italy since 1953 and has supplied KTM’s original pistons since 1996: molybdenum-disulphide coated skirt and Japanese rings. Its four-stroke pistons are forged from 2618 alloy.

When should you replace the piston on your BETA RR 480?

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

Recommended hours for a top-end rebuild (manufacturer recommendation for the Beta RR four-stroke):

• Normal use: every 90 h.
• Racing: no Beta figure; Cross-Mania guideline: compression check at around 45 h.

Specifications and fitting tips

• Material: Aluminium
• Piston compression: Standard
• Rings Quantity: Set
• Stroke: 4T

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: A = 99.96 mm, B = 99.97 mm.

Cross-Mania tip: Measure the cylinder bore before ordering: the piston must match your cylinder size. Follow the manufacturer's break-in procedure and replace the top-end gaskets at the same time.

Also needed with this part

• Top-end gasket kit : CENTAURO
• Spark plug : NGK
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50
• Air filter : HIFLO FILTRO · TWIN AIR

Compatibility

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

Fits:
BETA RR 480 2024
BETA RR 480 2023
BETA RR 480 2022
BETA RR 480 2021
BETA RR 480 2020
BETA RR 480 2019
BETA RR 480 2018
BETA RR 480 2017
BETA RR 480 2016
BETA RR 480 2015
BETA RR 480 4T RACE 2026
BETA RR 480 4T RACE 2025
BETA RR 480 4T X-PRO 2026
BETA RR 480 4T X-PRO 2025