The Sigma Butler III GPS is an aerodynamic handlebar mount for your Sigma GPS cycle computer. This means that your Sigma is perfectly centred in front of your handlebar and that you have a good overview of everything. This not only has an aerodynamic advantage, but is also safer. This mount is suitable for the Sigma ROX GPS 12.0 SPORT and the Sigma PURE GPS, among others.
The Sigma Butler III GPS comes with an adapter that allows you to mount action cameras.