SHIMANO GRX RX825 Di2 front derailleur delivers quick and precise front shifting even under heavy loads. Designed for a wider, 17T gear range, it utilizes a +2.5 mm chain line for improved tire clearance. The FD-RX825 is compatible with Full or Semi-Synchronized shift modes as well as the new FRONT SHIFT NEXT function for greater rider customization.
Wider tire clearance, the chain line +2.5mm vs. conventional road FD
Wider range front gearing
Attributes
Chainline
47mm
Cable Pull
Down
FD Capacity
17T
Chainstay Angle
63-66
FD Mount Type
Braze-on
Swing
Top
Max Chainring
48T
Primary Color
Black
Speed
2x12
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Specs
Size
Metric
Imperial
This is a size chart.
Geo
Metric
Imperial
Geometry of this bike.
Reach
Horizontal measurement taken from the middle of the bottom backet to the middle of the headtube.
Stack
Vertical measurement taken from the middle of the bottom bracket to the middle of the headtube.
Effective Top Tube
Horizontal measurement taken from the middle of the seatube to the middle of the headtube.
Actual Top Tube
True length of the top tube taken from the seatube along the toptup to the headtube.
Standover Height
Vertical measurement taken from the ground to the the middle of toptube.
Seat Tube Angle
Angle of the seatube.
Seat Tube Length
Lenght of the seat tube taken from the bottom bracket to the top of the seat tube (the measure is taken alongside the seat tube)
Headtube Angle
Angle of the headtube.
Headtube
Vertical lenght of the headtube.
Chainstay
Horizontal measurement taken from rear axle to the bottom bracket.
Wheelbase
Horizontal measurement between the two wheel axles.
BB Height
Vertical measurement taken from the ground to the bottom bracket (Never taken at sag).
BB Drop
Vertical measurement between the height of the axles and the height of the bottom bracket.
