The Compression Ring of the 2nd groove isScraper. The Oil Ring hasCoil Spring (3rd groove). Protect your valuable machine.
Piston Ring Set for RUGGERINI RD80, RD81, RD180, RD181, RD188 (80mm) [#2340]
Piston Ring Set for SLANZI DVA1200, DVA1750, DVA1750S, DVA2350 (92mm) [#469069]
Piston Ring Set for COTIEMME CA180L, CA180LV engines (65mm) [#53409]
Piston Ring Set for RUGGERINI CRD100, P101, RP170, RP178, RP320, RP328 (100.5mm)
Piston Rings Ring Set For 75cc Suffolk Colt Punch Cast Engine L03514 F016L03514
Piston Ring Set Fits BRIGGS & STRATTON Sprint, Classic Engines