Burgtec Top Cap Bolt Mix and Match If you're looking to improve the look of your bike, then you'll want to add some colorful components. The Burgtec Top Cap Bolt is available in 9 colors and works with the Burgtec Top Cap and Stem Spacers. If you have the Top Cap, it will only work with this bolt. Features Available in 9 colors Mix and match with the Burgtec Top Cap and Stem Spacers Compatible with the Burgtec Top Cap | Burgtec | Top Cap Bolt Toxic Barbie Pink