Package Included: <br />2 x 15mm Chain Tensioner Adjusters<br /><br />Fitment: <br />Fits Classic wheels &amp;amp;amp; various other styles used on Chinese Import Bikes with 15mm spindles / axles.<br /><br />Specification:<br />Hole Inner Diameter: 15mm <br />Fit axle size: 15mm  <br />Screw Fixing size: 45mm x 6mm LxD<br />Color: Red｣ｬ Blue｣ｬ Gold｣ｬ Silver｣ｬ Black<br />Quantity: pair<br />Material: Alloy<br />Pit Bike pre drilled chain tensioners / adjusters for 15mm axles / to change the hole size just drill out for 15mm or larger.<br /><br />Note: <br /><br />1. These do not fit all bikes｣ｬ if yours look different they probably wont fit. Please check the size measurement and the picture carefully before making payment.<br />2. Please allow 0.5-1 inch difference due to manual measurement.1 inch=2.54cm<br />3. The color of the actual items may slightly differentthe listing images due to different computer sn｣ｬ thanks for your understanding.<br />4. Instruction is not included.