With the Sigma Over-Clamp Butler handlebar mount you get more space and better order on your handlebar.
Technical specifications
- Sturdy, aerodynamic handlebar mount.
- Screw-on clamp attachment for the connector.
- Compatibility: ROX 2.0 / ROX 4.0 / ROX 11.1 EVO / ROX 12.
- Handlebar diameter: 31.8 mm / 35 mm.

