The design of this runner is specifically for riders who love the reduced darting feature of Woodys original Dooly and also want a more performance-enhanced product when cornering. Woodys Slim Jim is more responsive in the corners and comes in at a whopping 31 percent lighter than the original Dooly. Durable 3/8in. - 16 mounting studs ensure secure fit. Available with 4in., 6in. and 8in. of 60 degree turning carbide. Sold each.This item fits the following vehicle applications:compatible with Yamaha FX10 FX Nytro 2008-2012compatible with Yamaha FX10M FX Nytro MTX 153 2012compatible with Yamaha FX10M FX Nytro MTX SE 153 2010-2012compatible with Yamaha FX10M FX Nytro MTX SE 162 2010-2012compatible with Yamaha FX10MT FX Nytro MTX 2008-2010compatible with Yamaha FX10MTR FX Nytro MX 2008compatible with Yamaha FX10MTRA FX Nytro MTX 40th Anniv 2008compatible with Yamaha FX10RT FX Nytro RTX Non-Reverse 2008compatible with Yamaha FX10RTR FX Nytro RTX 2008-2012compatible with Yamaha FX10RTRA FX Nytro RTX 40th Anniv 2008compatible with Yamaha FX10RTRS FX Nytro RTX SE 2009-2010compatible with Yamaha FX10XT FX Nytro XTX 2009-2012compatible with Yamaha PZ500 Phazer 500 2001compatible with Yamaha PZ500DX Phazer Deluxe 2001compatible with Yamaha PZ50MT Phazer Mountain Lite 2007-2008compatible with Yamaha PZ50MT Phazer MTX 2009-2017compatible with Yamaha PZ50VT Venture Lite 2007-2013compatible with Yamaha RS10 RS Venture TF 2013compatible with Yamaha RS90GT Vector GT 2006-2011compatible with Yamaha RS90K RS Vector 2005-2006compatible with Yamaha RX10 Apex 2008-2013compatible with Yamaha RX10 RX-1 2003-2005compatible with Yamaha RX10GT Apex GT 2006-2010compatible with Yamaha RX10GTA Apex GT 40th Anniv 2008compatible with Yamaha RX10LT Apex LTX 2008-2010compatible with Yamaha RX10LTGT Apex LTX GT 2008-2010compatible with Yamaha RX10LTGTA Apex LTX GT 40th A