Trek Knock Block Upper Headset Assembly

The Trek Knock Block Headset Upper Assembly is a premium replacement component designed to maintain the integrity and performance of Trek’s Knock Block steering system.

Features:

• Designed for Trek Knock Block steering systems
• Prevents over-rotation and protects frame integrity
• Ensures smooth, consistent steering performance
• Durable, high-quality construction for longevity
• Perfect fit for compatible Trek MTB frames