Piston ring set GY6 4T 125cc 52,40mm

Piston ring set for the GY6 4T 125 cm³ engine, 52,40 mm diameter. The number is taken from the name.

• Piston rings seal the combustion chamber and scrape oil off the cylinder wall; when worn they let pressure through – compression drops, oil consumption rises and blue smoke comes out of the exhaust
• The diameter is taken from the name: there is no number on the rings themselves or in the photo
• The photo shows five rings: two compression rings, a copper-coloured spring expander and two thin oil scraper rings – that is the composition of a 4T engine set
• The photo on this listing is shared across five GY6 4T listings – from 50 cm³ to 150 cm³ – so we do not determine the diameter from it, and we do not describe the appearance by it
• The same GY6 4T line in the catalogue: 50 cm³ 39,00 mm, 60 cm³ 44,00 mm, 80 cm³ 47,00 mm, 125 cm³ 52,40 mm and 150 cm³ 57,00 mm – choose by your cylinder bore, not by the displacement
• The catalogue also has "Piston with rings GY6 4T 125cc 52,40mm" at the same 52,40 mm diameter – there the rings come together with the piston
• Rings alone are needed when the piston is still sound – if the piston is worn too, get the piston with rings: it is sold with matching rings in one set
• A worn ring can be recognised by too large a gap at the joint and by the fact that it falls freely inside the cylinder; all the rings in the set are replaced together, not one at a time

To be straight with you: the maker did not say which specific model and year these are for, and we do not guess – write us your model and year. Before ordering, measure your cylinder bore and the height of the old ring – or send a photo with a caliper: we will check it before you order.

24-month warranty · tel. +370 685 777 56