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Genuine Beta OEM part ensures factory specifications and reliability
Precision manufacturing with exact tolerances for perfect fit
Compatible with Beta's racing and enduro models for seamless installation
Durable materials provide long-lasting engine performance
Prevents fitment issues and maintains warranty compliance
Summarized by Shop
BETA PISTON RING SET D=88MM is the genuine Beta OEM piston (part no. 027.02.053.80.00) for the RR 350 4T, RR 350 4T RACING, RR 390 4T, RR 390 4T RACING (2011–2019). It converts combustion pressure into drive and sets your compression. Refresh it at the recommended top-end interval or after a seizure. Genuine OEM means exact fit, correct ma