Top of the range, high performance Dura-Ace hydraulic disc brake Di2 TT STI’s give you control, modulation and power
with minimal effort in all riding conditions.
Overcoming the sometimes complicated cable routing of time trial and triathlon bikes, the Dura-Ace R9180 levers bring
the confidence of hydraulic disc brakes to the sleekest bikes in the world. Combined with the plug and play ease
of Shimano Di2 electronic shifting, they offer an advantage in any race.
The Dura-Ace R9100 series of Flat Mount disc brakes bring powerfully integrated brake performance to the highest
rungs of road cycling. The R9170 calipers are light weight while offering better control and confidence in race
conditions.
Technology
SLR-EV
SLR-EV is SLR with a dual symmetric pivot brake caliper. The short-arm brake design employs two bearings and a
roller to realize greater efficiency in the pivot area and deliver superior modulation and power for braking.
Together with the BC-9000 brake cable, the latest calipers deliver 36% more braking power than Shimano’s
previous brake model. And we offer 2 axle symmetric brake caliper and fork mount and chain stay mount type
(BR-R9100 / 6810 / 5810).
SEIS
A technological innovation of the computerized shifting system based on the Di2 concept with which is called, the
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 for example 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 Lever so you don’t need to re-program your mind for the SEIS.
E-Tube
E-Tube is Shimano’s “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting
the riders, the bicycles and Shimano.
Shimano’s genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and
maintain it by connecting it wirelessly to your bike. You can also get the more detailed bike maintenance by
connecting to your bike by wire with E-Tube Project for Windows V4 application.
- Easily update to the latest firmware with the user-friendly interface
- Set two e-bike assist profiles to your preference, and customize the assist characteristics according to the
riding situation - Design your favorite Di2 gearshift in Synchronized Shift
- Easily adjust both front and rear derailleurs via application
Reach Adjust
Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to
suit any hand size, type of riding and individual rider preferences.
One Way Bleeding
“One Way Bleeding” was developed for quick and easy prevention of air in our hydraulic system. We have streamlined
the oil route throughout the system to prevent air bubbles from being captured in the system.
One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.
Ice Technologies Freeza
Ice Technologies combined with Freeza disc brake rotor construction rapidly dissipates heat for more consistent
braking performance in extreme conditions, longer pad life, and less brake fade and noise.
- Lightweight clad rotors with heat dissipating paint on exposed aluminum layer segments provide superior
cooling, consistent brake performance, and lighter operation under all conditions - Clad brake pads with Aluminum/Stainless fins support rapid heat dissipation which helps reduce maintenance,
provide longer pad life, and create less brake fade and noise
Ice Technologies and Freeza provide consistent braking performance with longer pad life, less brake fade and noise.
The lightweight and highly efficient three-layer sandwich structure of stainless steel–aluminum–stainless steel
enhances heat dissipation.
140°C reduction in heat (vs stainless steel disc brake rotor)
Reduce more 10°C by high heat dissipation paint (equipped: SM-RT900 and RT-MT900)
Features
- With Di2 technology shifting is easy and precise – just a light touch, as soft as a mouse click, is
sufficient for the front or rear derailleur to instantaneously select the correct gear - The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused
by contaminates, corrosion and stretching, and also provides effortless gear shifts - Full synchronized shifting programable, Synchro shift compatible meaning a single shifter button either side
can control both front and rear shifting which can be fully custom tuned to your riding preferences - TT STI with one shift button each side
- Shifters are lightweight thanks to carbon fibre lever blades and carbon composite bracket body
- Hydraulic brake lever provides excellent stopping power with less effort especially from the hood position
- Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during
pad wear - Finely tuneable reach adjusters for the levers enable custom fitment for all hands
- Free stroke adjustment for pad to rotor contact setting
- Levers are supplied without electrical cables, as these need to be ordered separately to suit
- Kit contains bled ST-R9180 STI, BR-R9170 flat mount brake calliper with pads, hoses and mineral oil (without
rotors or adapters)



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