At Escapa, you’ll find the best selection of Shimano components for your bike. The Shimano GRX RX815 DI2 11-speed front derailleurhas been designed to accommodate the specific characteristics of Gravel bikes. These bikes typically run wider tires than road bikes. As a result, there was a risk that the internal chain guide could rub against the tire or accumulate dirt due to the narrow clearance. To prevent this and create more space in the frame, the chainline was moved 2.5 mm outward and now measures 46 mm. This is also theShimano GRX RX815 DI2 11-speed front derailleur that has been adjusted. It also accommodates a 17-tooth chainring, thereby expanding the gear range.
Gravel bikes are becoming increasingly popular among cyclists. The advantages are obvious. They have a more comfortable geometry than road bikes, perform excellently off paved roads, and are suitable for longer rides. However, components from conventional road bikes reach their limits on these bikes. Therefore, Shimano has developed its own shifting groupsets specifically for this category.
The benefits of electronic shifting really come into play with theShimano GRX RX815 DI2 11-speed front derailleur. Gear changes are much faster, more precise, and require minimal effort. This increases safety and gives you an edge in hectic racing situations. Typical problems with mechanical shifting groupsets, such as derailleur adjustment, are a thing of the past thanks to the electronics. The auto-trim function saves valuable time, as the derailleur automatically readjusts based on the gear ratio, making chain catch virtually impossible.
Technical specifications:
Material: aluminum, stainless steel, glass-fiber-reinforced plastic
Version / Drive: 2-way, downswing, electronic Di2
Mounting: welded mount
Compatibility: ST-RX815 Di2 shift/brake lever
Max. largest chainring: 46–50 teeth
Max. front chainring difference: 17 teeth (difference between the smallest and largest chainrings)
Optimal chainline: 46 mm
Color: black / silver
