Shop Components Rear derailleurs Road Shimano Dura Ace RD-R9150 Di2 derailleur, 11-wheel, short arm (SS)

Shimano Dura Ace RD-R9150 Di2 derailleur, 11-wheel, short arm (SS)

Name: Shimano Dura Ace RD-R9150 Di2 derailleur, 11-wheel, short arm (SS)
Price: 629.0 EUR
Availability: LimitedAvailability
Rating: 5 (1 reviews)

RRP 739 €

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Product description

The new DURA-ACE rear derailleur features Shimano’s Shadow RD design and incorporate these new cockpit functions. The electronic rear derailleur is compact and designed to protect the shifting operation in the event of a crash.

Most advanced component group of all time: Shimano Dura Ace 11-speed Di2 Rear Derailleur RD-R9150 SS

With the introduction of DURA-ACE R9100, Shimano has reestablished the new benchmark for road performance by improving each component and incorporating its newest technologies. DURA-ACE R9100 delivers unparalleled performance, highly-refined ergonomics and immense customization to maximize every rider’s potential.

Engineered for the next generation of race bike, DURA-ACE R9100 offers top-tier performance across numerous configurations. Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of premium DURA-ACE hydraulic disc brake performance. New Shimano technologies further integrate the DURA-ACE as a system, including a new power meter, while riders further integrate with their bike through new E-Tube wireless connectivity. Shimano’s Rider Tuned philosophy and customization of the bicycle’s function also expands with a wider range drivetrain that now includes intuitive Shimano Synchro Shift control.

Front (FD-R9150) and rear derailleurs (RD-R9150) incorporate these new cockpit functions. Both electronic derailleurs are compact and designed to protect the shifting operation in the event of a crash. The low profile of the rear derailleur also comes with SHIMANO SHADOW RD technology, positioning the derailleur further below the functioning sprocket.

Features

Ergonomic shifting operation without stress
SHIMANO synchronized shift
Low profile rear derailleur design
SHIMANO SHADOW RD
Race endurance for less damage in crush
Maintains compact and smooth appearance

Product features

Use: Road
Group: Dura Ace Di2
Model: RD-R9150-SS
Cage: short
Mount Type: Direct Mount
Gear rear: 11-speed
Compatible Chain: HG-EV 11-speed / HG-X 11-speed
Max. teeth large sprocket: 30T
Min. teeth large sprocket: 25T
Max. teeth small sprocket: 14T
Min. teeth small sprocket: 11T
Max. Front Difference: 16T
Total Capacity: 35T
Compatible: EW-SD50
Master unit: No
Firmware update by E-tube Project: Yes
E-tube port (pcs): 1
E-tube connector (pcs): 0

Material

Aluminum
CFRP

Weight

204g (manufacturer information)

Scope of delivery

1 Dura Ace 11-speed Di2 Rear Derailleur RD-R9150 SS

Technology

Shimano Shadow RD

The mechanism rear derailleur, SHIMANO SHADOW RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.

SEIS SHIMANO ELECTRONIC INTELLIGENT SYSTEM

The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances like when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical Dual Control Levers so you don’t need to re-program your mind for a new system.

E-Tube

E-Tube platform offers optimum flexibility on your bike. E-TUBE transmits interactive signals and power supply to each parts by “Plug & play” connection. E-TUBE is no rust, no stretch, no freeze and it ensures advanced low maintenance. And SM-PCE1 connects between PC and components to update firmware. Digital device stay the latest version with updating firmware for improve function.

Synchro-Shift

SHIMANO Synchronized Shift is a new feature introduced to Shimano´s electronic road groupsets, designed to simplify gear choice and reduce decision making in racing situations. When riding at maximum capacity, decision making can be impaired. The less stresses on a rider and the less decisions a rider has to make, the less mistakes they will make. Therefore SHIMANO Synchronized Shift is designed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur.

Two SHIMANO Synchronized Shift modes will be available:

Full SHIMANO Synchronized Shift: the front derailleur reacts based on the rear derailleur’s shift action. This essentially means that, when activated, there is no need for two separate shifters to control front and rear derailleurs, the two buttons on one shifter will control both derailleurs.
Semi SHIMANO Synchronized Shift mode: the rear derailleur reacts based on the front derailleur’s shift action, shifting to the next most appropriate rear gear when the rider makes a front shift.

Shimano DURA-ACE R9100 (Di2)

Product features

Improved ergonomic design for better aerodynamics and compactness
Durability in any weather conditions and fast and smooth shifting even at high torque
The low profile of the derailleur, thanks to Shimano SHADOW RD technology, prevents frequent impacts and destruction

Product details

Groupset	Shimano Dura-Ace
Gears	1x11, 2x11, 3x11
Assembly type	Direct mount
Weight	197 g
Max. the size of the large cassette pinion	30T
Min. the size of the large cassette pinion	25T
Max. the size of a small cassette pinion	14T
Min. the size of a small cassette pinion	11T
Capacity	33T
Pulleys	11T
product ID	37361

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Road rear derailleurs from Shimano

Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.

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