ITEM NAME:Motorcycle Rear Axle Blocks Chain Adjuster for RC 125 200 390 Duke 2011-201 R9N3 Motorcycle Rear Axle Blocks Chain Adjuster for RC 125 200 390 Duke 2011-201 R9N3 CNC-machined from high-strength aluminium alloy Premium quality, anodized surface finish Direct OEM Replacement Easy to install This part is CNC-machined design made of high-strength aluminium, premium quality, anodised surface finish. Colour:Orange Material:Aluminum alloy Package Contents: 2x Chain Tensioner The product may have a slight chromatic aberration due to the lighting, and the size may vary slightly due to the manual measurement. Please understand..2x Chain Tensioner. Easy to install. Material:Aluminum alloy.