1,Durable Material: Made of 6061 aluminum alloy material, wear resistance, sturdy, durable and long service life. 2,Front Fork Hanging Core: Does not damage the front fork, can be used repeatedly, light weight, and strong. 3,Scope of Application: High strength fit front fork, suitable for carbon fiber or aluminum or iron head tube. 4,Expansion Lock Block: Adopts 3 sections, which has larger force area compared with ordinary 1 and 2 sections, and better fit. 5,Strong Compatibility: Compatibility: standard 1 1 or 8 28.6mm head tube, standard M6 screw, applicable tube diameter: min. 23.5mm or 0.9in max. 25.8mm or 1.0in. Item Type: Front Fork Standpipe Hanging Core Weight: Approx.32g or 1.1oz Material and Technology: 6061 Aluminum Alloy Application: Carbon Fiber or Aluminum or Iron Head Tube Compatibility: Standard 1 1 or 8 28.6mm Head Tube, Standard M6 Screw Applicable Pipe Diameter: Min. Approx. 23.5mm or 0.9in, Max. Approx. 25.8mm or 1.0in 1 x Front Fork Standpipe Hanging Core Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.