
VERTEX Ring Set Ø40MM — a ring set designed for small urban displacements. Manufactured by VERTEX, this kit allows you to replace worn rings to restore the cylinder's sealing and the compression necessary for the proper functioning of the powertrain.
This set is aimed at motorcyclists and DIY enthusiasts who maintain 50 cc scooters — it is notably compatible with models such as the YAMAHA AEROX R (SA421), the MBK OVETTO 2T ONE, and the APRILIA SCARABEO 50 (AIR). Ideal for an engine overhaul, replacing the rings helps to limit oil consumption and improve combustion consistency as wear sets in.
Practical advice: installation by a mechanic or by a well-equipped and methodical amateur. Check the condition of the piston and cylinder during replacement to ensure proper clearance and correct bedding. A simple and essential spare part to maintain the health of the engine in daily urban use.