Bore: 83.00mmSizing: 1.00mm OversizeForged from high-silicon aluminum alloy for maximum strength and dependability..Innovative forging design and piston skirt provide maximum horsepower and torque..Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise)..Oversize pistons require cylinder sleeving..SPECIFICATIONS.Displacement: 508.5cc.Bore - Standard: 82.00mm.Bore - Actual: 83.00mm.Bore - Oversize: 1.00mm.Stroke: 47.00mm.Cylinders: 2.Compression Ratio - Actual: STD.Skirt Coating: ArmorGlide.ITEM CONTENTS.8300XX - 83.00MM RING SET.CW18 - ROUND WIRE PIN LOCKS 18MM (PAIR).S600 - PistonPin 18mm x 1.850in. NonChromed SWThis item fits the following vehicle applications:compatible with Can-Am Outlander 500 EFI 2011-2013compatible with Can-Am Outlander 500 EFI XT 2011-2013compatible with Can-Am Outlander 500 HO 4x4 EFI 2007-2010compatible with Can-Am Outlander 500 HO 4x4 EFI XT 2007-2010compatible with Can-Am Outlander 500 HO 4x4 EFI XT-P 2010compatible with Can-Am Outlander Max 500 HO EFI 2007-2010compatible with Can-Am Outlander Max 500 HO EFI LTD 2010compatible with Can-Am Outlander Max 500 HO EFI XT 2007-2010compatible with Can-Am Outlander Max 500 HO EFI XT-P 2010