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Shimano Dura Ace FD-R9100 Mechanical Front Deraileur


Mechanical shifting at the highest level: the Dura Ace front derailleur by Shimano

The development of a Dura Ace R9100 high precision, easy to use and reliable shifting system was the main goal of the Shimano engineers. The result was a reworked construction of the front derailleur that needs reduced strength when shifting but delivers a precise shift result. This mechanical shift system sets the level of performance of mechanical shifting even higher. 


Technical Information:

Series: Dura Ace R9100

Application: Road (competition)

Outer Body Material: CFRF (plated, painted)

Inner Body Material: aluminium, anodized

Cage Material: aluminium, nickel plated

Gearing: 2-speed (in combination with 11-speed)

Chainstay Angle: 61-66°

Chainring Size (max): 50-55 tooth

Capacity: 16 tooth

Chainline: 43.5 mm

Cable Pull: down pull

Movement: down swing

Mount: braze-on or clamp

Clamp Diameter: 31.8 mm (28.6 mm with adapter) or 34.9 mm

Compatible Chain: HG-EV 11-speed, HG-X11


Model Index:


– Mount: braze-on 

– Type: FD-R9100-F

– Factory Number: I-FDR9100F


31.8 mm:

– Mount: Clamp (diameter 31.8 mm; 28.6 mm with adapter)

– Type: FD-R9100-B

– Factory Number: I-FDR9100BSM


34.9 mm:

– Mount: clamp (diameter 34.9 mm)

– Type: FD-R9100-B

– Factory Number: I-FDR9100BL

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