BMC Roadmachine

Detailed assembly instructions
49
Roadmachine Owners Manual
Expander installation
Flat steerer fork
• Grease the self cutting expander bolt to facilitate the installation.
• Push it in the flat steerer foam and turn clockwise while applying pressure down.
• Tighten until the expander bolt head is flush with the top of the steerer.
Screw in the self-cutting expander untill it’s flush
Grease
Round steerer fork
• Degrease and clean the contact surfaces of the expander and the inside of the steerer tube.
• Insert the expander into the steerer tube. You can loosen the exander bolt if it does not fit easily.
• Push the expander so its upper flange is in contact with the top of the steerer tube.
6 8 Nm
Screw in the self-cutting expander untill it’s flush
• Tighten the expander bolt to 8 Nm using a hex 8mm wrench.
i
INFORMATION:You could grease the expander bolt. However, there is no need to use grease or
friction paste between the expander and the steerer tube. Better to leave the contact surfaces dry.
!
WARNING: Always use the approved expander to ensure steerer tube structural integrity.
!
WARNING: Never clamp the stem below the expander or without the expander fixed in the steer-
er tube.