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Genuine replacement parts
A safe and secure alternative to the traditional star nut for carbon fibre steer tubes.
This expander plug can be easily installed in all Trek 1-1/8" carbon fibre steer tubes.
Product details
- Approved for use on all Trek carbon fibre 1-1/8" steer tubes
- Always install one spacer above the stem on carbon fibre steer tubes
- Do not use on aluminium steer tubes in place of a traditional star nut
- Torque inner expander bolt to 9-10Nm
- Torque top cap bolt to 4Nm