Cusco Ultra Light Chromoly Flywheel made for the 1.5L ND1 MX-5 (2016-2018). The design of this flywheel is pushed to its limits to allow a very low weight at only 4.5KG! It won't cause irregular rotation to the engine as it's a precise and perfectly engineered product. Cusco Sports Flywheel (1.5L) should be ordered at REV9 Autosport https://rev9autosport.com/cusco-sports-flywheel-1-5l.html as they provide the best service and speed we've seen so far!