Shimano R9100 Dura Ace 2×11 Groupset

The advantage of a system over individual parts: die Dura Ace R9100 groupset by Shimano

Shimano’s presentation of the new Dura Ace, the most advanced groupset ever, gave road racing professionals and enthusiasts the answer to the question of how to improve high-level performance.
The concept behind the new Dura Ace was to examine and improve all components. The main goal was to optimize the input and maximize the output. Or to say it in another way, minimize the energy loss between the cyclist power output and the performance the rider achieves. A perfectly tuned system for optimum power transfer, including a wide range of gearing choices to match the rider’s style and needs. Repeatedly tested for maximum efficiency on all terrains and under all conditions.

Specifications:

Series:Dura Ace R9100
Gearing:2×11-speed

Components:

Crankset:170.0 mm, 172.5 mm, 175.0 mm (gradation 39-53)
Cassette:11-25, 11-28, 11-30
Front Derailleur:braze-on
Rear Derailleur:short cage
Brakes:rim

Contents:

Shimano R9100 Dura Ace groupset includes:
– 1 x Shimano Dura Ace (FC-R9100) crankset
– 1 x Shimano Dura Ace Shadow (RD-R9100) rear derailleur
– 1 x Shimano Dura Ace braze-on (FD-R9100) front derailleur
– 1 pair of Shimano Dura Ace STI 2-/11-speed (ST-R9100) brake / shift levers
– 1 pair of Shimano Dura Ace (BR-R9100) rim brakes
– 1 x Shimano Dura Ace (CS-R9100) cassette
– 1 x Shimano Dura Ace / XTR (CN-HG901-11) chain
– incl. brake / shift cables
– incl. cable housing

* Bottom bracket not included