Manufactured by Factory Spec 1 Pair of 1 spacers adds 2 total width, makes it easy to widen the stance of your ATV. Provides extra stability and has the ability to accommodate larger tires. Studs are integrated, you do not need to remove the stock studs for installation. Hardware included for easy installation Constructed of 6061 T-6 aluminum for maximum strength and durability These spacers will work with a bolt pattern of 4/110 The FRONT AND REAR of the following models have a bolt pattern of 4/110 1999 Yamaha Bear Tracker 250 YFM250X 2000 Yamaha Bear Tracker 250 YFM250X 2001 Yamaha Bear Tracker 250 YFM250X 2002 Yamaha Bear Tracker 250 YFM250X 2003 Yamaha Bear Tracker 250 YFM250X 2004 Yamaha Bear Tracker 250 YFM250X