Shimano Di2 electronic shifting lets you change from the big to small chainrings, or vice versa, whenever you like while minimizing the risk of a dropped chain. Similarly, you can perform rear shifts without the need to trim the front derailleur to avoid chain rub. Full- and semi-synchronized shifting functions can be selected using the E-Tube app. With digitally accurate electronic shifts and coordinated communication between shifters and derailleurs, the new Shimano Di2 105 front derailleur offers compelling performance.
Programmed chain guide control by automatic trim
Shimano SYNCHRONIZED SHIFT
Manual, full- and semi-synchronized shifting program
Attributes
Chainline
44.5mm
Cable Pull
Di2
FD Capacity
16T
Chainstay Angle
61-66
FD Mount Type
Braze-on
Swing
Down
FD Weight
142g
Max Chainring
52T
Primary Color
Black
Speed
2x12
Need help choosing the right product?
Our team of riders and experts will be pleased to help you.
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.
