Description: Our bike expansion bolt is very durable and high strength to fit front fork. It's h igh quality, good processing technology and high cost effective make it more popular in the market. Practical and convenient to use. Great accessory for you. What are you waiting for? You are worth it. Features: 1. Made of aluminium alloy and stainless steel screw , which is very durable and reliable. 2. High quality, good processing technology and high cost effective. 3. Convenient to install and remove. 4. High strength and closely fit front fork. 5. Suitable for front fork with upper end outer diameter of 28.6mm, and carbon fiber front fork and mountain suspension fork are applicable . Specifications: Material: 304 stainless steel screw + 6061 aluminium alloy Color: Silver (as shown in the pictures) Package Weight: approx. 44g Outside Diameter: approx. 28.6mm / 1.1" Expanded Range: approx. 22.2-25.4mm / 0.8"-1" Process: diamond knurled, T6 heat treatment Suitable: front fork with upper end outer diameter of 28.6mm (carbon fiber front fork and mountain suspension fork are applicable) Install: 5 or 6 socket head wrench Quantity: 1pc Package Included: 1 x Fork Expanded Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.