Headset Part Trek Top Cap Knock Block Premium 2018 Black
Genuine replacement parts
Trek proprietary headset parts.
A wider top cap to cover the keyed recesses of Knock Block compatible stems and spacers.
The M4 hex preload bolt allows for checking torque of the full cockpit without changing bits on the torque wrench.
Key Features
- Do not use star nut on carbon steers
- Top cap has a 35.5mm diameter
Specifications
| Color |
Black |
| Size |
Knock Block Top Cap |
| Gender |
unisex |
| Intended User Age |
12 years and over |
| Model Year |
2026 |
| Weight |
30g |
