Bikes Are Back! Shop Our Selection
This carousel displays a list of buttons that updates the main product image when a button is clicked
  • Options
  • Detail Images

ShimanoDura-Ace ST-R9100 11-Speed STI Shifters


Item # SHI00E2

Select options
  • Cancel
  • Select options
  • Black, Set ($549.99)
Add Protect+ Powered by Extend™
  • 100% Guaranteed Returns
  • Free Shipping on orders over $50

Item # SHI00E2

Why We Like The Dura-Ace ST-R9100 11-Speed STI Shifters

For Dura-Ace 9100's redesign, it was only fitting for Shimano to update its ST-R9100 11-Speed STI Shifters alongside the reworked front and rear derailleurs. When it unveiled Dura-Ace 9100, Shimano subsequently gave a nod of solidarity to double cranksets and mechanical shifting for road. Rather than stubbornly refusing to let traditional standards die, Shimano demonstrates these technologies' ability to transition into the future. Sure, a few of us at Competitive unabashedly love the soul of mechanical shifting, but with the crispness, precision, and sinewy curves of the new R9100 Shifters, the system makes the argument for itself.

Shortening up the lever stroke and updating the internal shifting unit were first on the list for the shifters' upgrades, and Shimano succeeded admirably at what it does best: creating incredibly reliable, functional componentry. Quick taps deliver smooth, effortless shifts along the cassette and crankset compared to 9000, whether you're mashing down on the pedals in a race or out for a Sunday hill climb with your ride crew, which places Dura-Ace 9100 at the zenith of mechanical shifting.

Shimano waved its meticulous wand over the brake levers as well, achieving improved hand/lever interaction by carving the lever blades into a more sinuous, contoured shape. This shape enhances braking leverage in a decidedly European style not previously seen from the more utilitarian brand, giving you the ability to shave, rather than dump, speed on serpentine descents from the hoods as well as the drops. Further, the brand cleaned up the hoods, sculpting them into a smaller, more organic shape that enhances both rider comfort as well as the groupset's already classy aesthetics.

  • Shift and brake with unparalleled reliability and ease
  • Shorter lever stroke requires less effort and pressure
  • Reshaped brake levers for easier braking from the hoods
  • Smaller, more organic hood shape improves rider comfort
  • Shimano proves that there's still a place for mechanical shifting at the top end

Tech Specs
Compatible ComponentsShimano Dura-Ace 9100
Manufacturer Warranty3 years

Actual Weight

Black, Set

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[pair] 12.9oz

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead

What do you think about this product?


>Rating: 5

Dura Ace mechanical shifters

I've put it through the wringer
True to size

Excellent! I had a problem with my Ultegra shifters from the bike manufacturer and once I put the Dura Ace shifters on my bike my shifting were all gone.


Are these shifters compatible with Ultegra FD-R8000 derailleurs?


Compatibility with DA9000 Will the 9100 shifters work with both the front and rear derailleurs from the Dura-Ace 9000 series?

yes these shifter will work with a 9000 derailuer setup

>Rating: 2

Left Lever Failure

After about a year, the left lever refuses to shift to the small ring. There is a tiny arm under the lever that is supposed to return to center after shifting to the big ring. It hangs up & does not return to center. Because of that, when you try to shift to the small ring, nothing happens unless you manually put that small arm back to center. This is very irritating, especially since Competitive Cyclist & Shimano keep telling me to contact the other for help. To get Shimano to help, I need to send the shifter back to them for 3 weeks!


I had this exact same problem on a right shift lever. Waiting for a month now for JensonUSA to do something. Very disappointing.

>Rating: 3

Dura-Ace 9100 STI Shifters

I've used it several times

I bought these to replace the D-A 9000 STI shifters. The reason for the replacement the premature fraying/breaking of the rear derailleur cable at its head, at 7,848 miles. I had read that the 9100 shifters extended the durability of the cable. After installing the 9100 shifters and using them for 750 miles, the shifting on the rear derailleur is not as precise as with the 9000 shifters. The front shifter works well except the force required to shift to the big ring seems harder than with the 9000 shifter. I will reinstall the 9000 shifters when the rear derailleur cable frays, unless this does not occur until after more than 28,000 miles, the duration of the 7800 series rear derailleur cable.

>Rating: 5

The best!

I've used it several times

It is Shimano, Dura Ace, it is the best you can get.

>Rating: 5

9100 Dura Ace

I've put it through the wringer

I used a DA-7800 10 speed for quite a few years. Let me say this, the 7800 was the foundation of the mechanical DA 9100. With that said, the 9100 11-speed FD and RD has the ability to be trimmed to a perfectly silent "transmission". This is by far the quietest setup that I have had as a mechanical. If your considering upgrading from 10-11 speed and you are interested in the DA 9100, go for it! you won't regret it.


Are derailleur and brake cable set included with the shifters or i have to buy them apart?

The cable set will be included with the shifters.

>Rating: 5

Superior ergonomics, flawless smoothness

Shimano has redefined mechanical shifting once again. Ergonomics are absolutely top notch. If you're moving over from a 10 speed or earlier group, the levers are longer so you may have to move to a shorter reach bar or shorter stem though. The small shift paddle is now enlarged to make them easier to reach in the drops. The hoods have a new texture which honestly doesn't make a difference for me, but they look cool at least? The action is ridiculously tight and smooth, it reminds me of my other favorite past time. Another note is that it is compatible with all 11 speed Shimano derailleurs (5800, 6800, 9000, R8000, obviously R9100). All the necessary cables and housing is included with the shifters.


The kind of review that we like to consult.

>Rating: 5

These shifters are great!

I've used it several times

These shifters are very smooth, the hoods are very comfortable, and the finish is very nice. What more can you ask for?

>Rating: 5

Mechanical Perfection

I've put it through the wringer

I thought the previous gen 9000 was great, and Shimano somehow improved pretty much everything about it. Hoods are a little more comfy, and the lever blade curves a little bit more on the end to aid one fingered light braking perfectly. The shifting of both the front and rear derailleurs are lighter action, but dont lose any of that firm feeling. No complaints

>Rating: 5

Definitely an improvement over 9000

I've put it through the wringer

Love the shorter throw of the 9100 levers. Grips and set-up are definitely improved, the feel of the hoods is similar to 9000 but they don't seem to get as gummed up. Same great braking feel and lever modulation as 9100. NOTE: Would recommend running modern shallow-drop bars with these levers given the tad shorter lever throw. Older style bars with a deeper drop will limit the ability to set up the lever throw in correlation to how close the pads are to the rim when not engaged. Shifting is a bit lighter than DA 9000 but every bit as solid.

>Rating: 5


I just upgraded form Ultegra to Dura-Ace and love the shorter lever stroke.