This Titanium Top Cap Bolt is a high quality replacement part for your bike. It is made of Grade 5 Titanium and has a anodized finish for durability and corrosion resistance. The bolt is 6mm in diameter and 35mm long. It is designed to fit most mountain bikes and road bikes, and is a great upgrade for your bike's performance. The bolt is easy to install and requires no special tools. It is a great addition to any bike and will help improve your riding experience.