We are very pleased to be able to announce the availability of our new TwinStar Steel/Aluminium hybrid sprocket. The JT TwinStar range has seen much development in producing the lightest, most durable bi-metal sprocket on the market today. An extensive test programme which included top level Motocross events and the 2020 Dakar Rally have proven the final product embodies all the qualities that make JT Sprockets the World leader, with ultimate performance and unbeatable value. The core of the JT TwinStar is a lightweight aviation grade Ergal 7075-T6 Aluminium, precision made using state of the art laser cutting and CNC machining The steel outer ring is heat-induction hardened to create a sprocket which will last up to six times longer than a standard 7075-T6 Aluminium sprocket. Compatible Bikes: Manufacturer Model Year Yamaha TTR230 T,V,W,X,Y,Z,A,B,D,E,F,G,H (1C6) 2005-2017 Yamaha YZ125 P,R,S (5XE2) 2002-2004 Yamaha YZ250 F-T,V,W,X,Y (4-Stroke) 2005-2009 Yamaha YZ250 F-Z,A (17D5) – USA 2011 Yamaha YZ250 P,R,S 2002-2004 Yamaha YZ400 F-L 1999 Yamaha YZ450 F-E – USA 2014 Yamaha YZ450 F-W,X,Y,Z,A,B,D,E (33D) 2007-2014
