Description Fits SW part #1100-1237 NCY Piston Rings (50mm, for 81cc Cylinder Kit); QMB139 Piston Rings Other products by NCY SKU1100-1380 - + Retail Price: $32.00 Your Price: $32.00 In Stock Add to cart Add to wishlist Have a Question about this item? Click here to email us. Also in Category NCY Replacement Piston Ring (47 mm); Jog/Minarelli Kits. Price: $32.00 QTY: Add To Cart Piston rings (NCY/PRIMA cylinder kits); Minarelli 70 Price: $32.00 QTY: Add To Cart piston rings, NCY Cylinder Kit, (59 mm) ; Fits SW part # 110 Price: $35.00 QTY: Add To Cart Piston Ring, M1*172 (Quattrini Cylinder kit) ; PX/Stella Price: $86.00 QTY: Add To Cart