Genuine replacement parts
Service and replacement parts specifically for Trek Knock Block Technology.
Product details
- For locking steer tube to the headset bearing cover and frame chip
- Only for use with Trek Knock Block systems
More options
| Model | Trek Knock Block Lockring Spacer |
|---|---|
| Steerer outer diameter | 28.6mm (1-1/8") |
| Thickness | 10mm |