Shimano Dura-Ace Front Derailleur FD-R9250 2x - Workshop Pack

OEM Packaging:

This item comes from the original equipment manufacturer and is lacking the retail packaging.

Information regarding the return of batteries and electrical equipment:

You can find information about the return and disposal of used batteries, accumulators, and electrical equipment here.

Specifications:

Series:

Dura-Ace Di2 R9250

Application:

Road, Triathlon & Time Trial

Gearing:

2x (in combination with 12-speed)

Chainstay Angle:

61 - 66°

Chainline:

44.5 mm

Chainring Size (max.):

50 - 54 teeth

Capacity:

16 teeth

Movement:

down-swing

Mount:

braze-on

Compatibility:

HG 12-speed chains

Technical Information:

Outer Body Material:

aluminium

Inner Body Material:

steel

Cage Material:

aluminium

Number of E-Tube Ports:

1

Compatibility:

Power Cable:

EW-SD300-I (1 x connection)

Shift-/Brake Lever:

ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-R8150, ST-R8170, ST-R8060, ST-R7170

Crank:

FC-R9200 (34-50, 36-52), FC-R9200-P (34-50, 36-52), FC-R8100, FC-R8100-P, FC-R7100, FC-RS520

Chain:

CN-M9100, CN-M8100, CN-M7100, CN-M6100

Clamp Adapter:

SM-AD91

Features:

• High shifting speed: 45% faster than FD-R9150
• Slimmer, flatter, and lighter than predecessor
• Front area reduced by 33%, thereby less wind resistance
• Connected to battery via cable
• Fully- and semi-synchronous shift mode adjustable (via E-Tube or rear derailleur)
• Firmware updates via E-Tube Project
• 4 pivot bushings
• Outer parallelogram anodised
• Inner parallelogram and baffles plated

Technology:

Digital Integrated Intelligence (Di2)
Di2 systems are the electronic shifting systems from Shimano. They are based on the SEIS, the Shimano Electronic Intelligent System, which takes over the indexing shifting function from the mechanical components, only via electrical cables or wireless signals instead of a Bowden cable. Shifting is done by simply pressing a button. This has the advantage that no great effort is required, your concentration on the ride is not disturbed, and the operation, e.g., with cold hands, is easy. In addition, the electronic gear changes are very fast and highly precise. There is also no risk of a defective circuit due to dirty cables or other problems. Via the E-Tube platform, the so-called E-Tube Project, you can make individual settings, such as adjusting the shifting speed, the number of shifts per button press, or the Synchro or Semi-Synchro shifting function. Shimano offers an app for this purpose. Gear maintenance and firmware updates are also done via E-Tube, with the bike connected to a PC running the appropriate E-Tube software for more extensive workshop work.

Shimano Synchronized Shift
Shimano's synchronised shifting function is a shifting mode that automatically matches the Di2 rear derailleur and Di2 front derailleur. It is activated either via the E-Tube platform or via the rear derailleurs with a function button. Synchro Shift means that the front derailleur automatically selects a suitable gear depending on the position of the rear derailleur, while Semi-Synchro Shift means that a suitable rear derailleur position is automatically set when you operate the front derailleur. This gives you the advantage that you only have to concentrate on one side of the shifting process and are not thrown off-rhythm by sudden unfavourable changes to the gear ratio.

Manufacturer Number:

KFDR9250F

Contents:

• 1 x Shimano Dura-Ace Di2 FD-R9250 front derailleur