6.2 cockpit
Handlebar Installation (Drop or Flat)
Handlebar Installation (Drop or Flat). Step-by-step procedure for bike maintenance — tools, time, and what to watch out for.
Tools
- 4–5mm hex
- torque wrench
- carbon assembly paste (if carbon bar or carbon stem face plate)
Procedure
-
Remove the stem face plate
(the four bolts on the front of the stem). -
Apply a small amount of carbon paste
to the bar's clamping area if either the bar or stem is carbon. (Skip for alloy on alloy.) -
Place the bar in the stem clamp.
-
Set bar angle:
- Drop bars: typical setup has the bottom of the drops parallel to the ground, with a slight downward tilt of the bar tops. - Flat bars: a few degrees of upward sweep is normal; experiment. -
Reattach the face plate.
Hand-thread all four bolts so they engage. -
Verify the gap
between face plate and stem body is **equal top-to-bottom** (and side-to-side for 4-bolt designs). The face plate should sit parallel to the stem body, not tilted. -
Tighten in cross pattern
progressively to spec — typically **5 Nm carbon** or **6 Nm alloy**. Work in 1 Nm steps, alternating bolts, to keep the gap even. -
Reinstall brake/shifter levers
at desired position. Torque clamp bolts to **5 Nm**. -
For drop bars:
wrap with bar tape (6.5). ---
Procedure #
- Remove the stem face plate (the four bolts on the front of the stem).
- Apply a small amount of carbon paste to the bar’s clamping area if either the bar or stem is carbon. (Skip for alloy on alloy.)
- Place the bar in the stem clamp.
- Set bar angle:
- Drop bars: typical setup has the bottom of the drops parallel to the ground, with a slight downward tilt of the bar tops.
- Flat bars: a few degrees of upward sweep is normal; experiment.
- Reattach the face plate. Hand-thread all four bolts so they engage.
- Verify the gap between face plate and stem body is equal top-to-bottom (and side-to-side for 4-bolt designs). The face plate should sit parallel to the stem body, not tilted.
- Tighten in cross pattern progressively to spec — typically 5 Nm carbon or 6 Nm alloy. Work in 1 Nm steps, alternating bolts, to keep the gap even.
- Reinstall brake/shifter levers at desired position. Torque clamp bolts to 5 Nm.
- For drop bars: wrap with bar tape (6.5).