Check the listing for details. SPI Ring Set 72.00mm SM-09144AR. Condition: New. Listed at 28.99 USD. Genuine SPI Products Product Details: Available in standard sizes only to fit Sport Parts Inc. pistons original equipment pistons and all other brands that utilize the original equipment designSPI rings are manufactured to original equipment specs and interchange with the original equipment design on original pistonsAll rings are compatible with the original cylinder material as well as re-sleeved cylindersIncluded Items: (2) Rings About Us: LeClare Powersports is a small-town Parts and Accessories store in Springfield, MO. Our low overhead allows us to offer better prices than the 'Big Boys', but our owner-operated store allows us to give our customers the great customer service they deserve. We only sell brand new, high quality GENUINE name-brand aftermarket parts...no junk, no knock offs and no "seconds". Buy with confidence!