SHIMANO GRX front derailleur FD-RX810
Gravel bikes are becoming increasingly popular among cyclists. The advantages are obvious. They have a more comfortable geometry than road bikes, are excellent off the beaten track and are suitable for longer journeys. However, conventional road bike components reach their limits on these bikes. Shimano has therefore developed its own groupsets especially for this type of bike.
The GRX FD-RX810 front derailleur was designed in such a way that it is adapted to the specific characteristics of gravel bikes. These usually ride with wider tires than road bikes. As a result, there was a risk that the inner chain guide could rub against them or collect dirt due to the small clearance. To avoid this and create more space in the frame, the chain line has been moved outwards by 2.5 mm and is now 46 mm. The GRX front derailleur has also been adapted to this. It also manages to bridge a chainring capacity of 17 teeth and thus extend the gear range. In order to be able to adjust it optimally, it has its own adjustment screw on which the tension of the Bowden cable can be set.
Technical data
Material: aluminum, stainless steel, glass-fibre reinforced plastic
Design / actuation: 2-way, downswing / down pull
Fastening: Braze-on socket
Compatibility: ST-RX810 shift/brake lever
max. largest chainring: 46-50 teeth
max. difference at the front: 17 teeth (difference between smallest and largest chainring)
optimum chainline: 46 mm
Color: black/silver
Weight according to manufacturer: n.a.
Weight self-weighed: 94g
Scope of delivery: 1x SHIMANO front derailleur GRX FD-RX810