Torque specifications
Seatpost & saddle torque specs
Torque specifications for seatpost & saddle bolts on a bicycle — exact Nm values, tool sizes, and notes for safety-critical fasteners.
| Bolt | Torque | Tool | Notes |
|---|---|---|---|
| Seatpost clamp (frame) | 4–5 Nm | — | Lower than you'd expect |
| Saddle rail clamp (single bolt) | 8–12 Nm | — | — |
| Saddle rail clamp (twin bolts) | 5–7 Nm | — | — |
| Carbon rail clamp | 4–5 Nm | — | Always use torque wrench |
| Dropper actuator clamp | 4–5 Nm | — | — |
Seatpost & saddle torque reference #
Typical torque values for the bolts in this category. Always defer to your component’s manufacturer spec when one is printed; these are baseline values for when no spec is available.