The Trek Aero RSL spacer is specially designed for the RCS headset system and the Aero RSL integrated stem. Manufactured in two parts, it makes maintenance and removal of the headset much easier without dismantling the entire cockpit. Its 28.6 mm diameter and 5 mm thickness allow fine adjustment of handlebar height while maintaining excellent aerodynamic integration.

Perfect for Trek bikes fitted with the Aero RSL system (Madone Gen 8, Emonda, etc.), this original spacer from Trek guarantees perfect compatibility, maximum durability and optimum maintenance of your bike's geometry. Ideal for fine-tuning your riding position without compromising the rigidity or high-end aesthetics of your bike.

Technical specifications :

- Headset spacer for bikes Trek
- Height 5mm
- Compatible with RCS headset system
- Designed for easy installation and improved aerodynamic performance
- Made from Onyx carbon with a matt finish offering stylish looks and increased strength
- Thickness : 5 mm
- Diameter: 28.6 mm
- Compatibility: Aero RSL stem + RCS headset
- Design: Two-piece for easy maintenance
- Part number: W5316079
- Colour: Matt black (Onyx Carbon)
- Brand: Bontrager