Billet Axle Blocks Chain Adjuster. The Axle Blocks are designed to make changing and aligning your rear wheel quicker and easier.CNC-machined from high strength Aircraft Grade billet aluminum, lightweight and durable.Anodized surface finishing, give your bike an amazing look.Scales on both sides of axle block for easy adjusting.Makes wheel changes and adjusts easier.Model: For KTM DUKE200 DUKE 390 125 200 990Easy to install.Type: Chain AdjusterCondition: 100% Brand NewColour:orangeMaterial:Aluminum alloyPackage Contents:2 x Chain AdjusterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.