All Years Suzuki LT-Z400 ATV High Performance Powerlip Lower Chain Roller [Blue] Zero Drag Patended Design Eeach Roller is Engineered to Improve Drive Chain Speed and Chain Tension Accuracy 9002 ISO Certified Sealed Racing Bearings are Installed along with a Matching Set of Stainless Steel Washers to Protect and Reinforce the Outside Bearing Seal A specific Fit Combination of Stainless Steel or O.E.M. Style Bolts are Included with Each Roller Compatibility: All Years Suzuki LT-Z400