Will the SmartphoneGrip fit on my handlebar or on my bike?

The modular display holder is required to use the SmartphoneGrip. Please note that there are two different handlebar diameters (1.25 and 1.38 inches (31.8 mm and 35 mm) (see also  operating instructions).

If you already have a Bosch smart system display installed (e.g., Kiox 300 display), a simple exchange is possible.