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ZIPP STEM TOP CAP AND BOLT The new Zipp Stem Top Cap and Bolt are designed to work specifically with Zipp stems. The 8g-aluminum cap and 9g-bolt are the same as those used on bikes built for Zipp-sponsored professional teams. The bolt has a T25 Torx® head for ease of adjustment and so you need only one tool for your cockpit. Material: Cap 6000 series Al, Steel Bolt Weight: 8g Cap, 9g Bolt |