Shimano DURA ACE Di2 ST-R9250 2×12-speed STI Dual Control Set
As the best DUAL CONTROL shift/brake levers for rim brakes, the Shimano DURA-ACE ST-R9250 offer a 12-speed shifting function with improved ergonomics and remarkably low weight. The DURA-ACE ST-R9250 DUAL CONTROL shift/brake levers set new standards in reliable performance with a secure cable connection and the low weight of a rim brake system. With improved ergonomics and state-of-the-art materials, there is no denying the racing genes of these shifters (no box packaging).
THE SCIENCE OF SPEED: Shimano Dura Ace Di2 2×12-speed STI Dual Control Set ST-R9250
Shimano has been working for years to provide you with an advantage of seconds. The new 12-speed DURA-ACE R9200 is the fastest groupset ever and the pinnacle of SHIMANO technology and innovation. Speed was the key driver for the development of this new generation road groupset. That’s why every component has been revised, refined and optimised to make you even faster – whether to leave the peloton behind you or to win the final sprint on the Champs-Élysées.
Features – Shimano DURA ACE Di2 ST-R9250 2×12-speed STI Dual Control Set for Rim Brakes – SLR-EV
FASTEST AND MOST RELIABLE SWITCHING OPERATIONS EVER
Improved aerodynamics – Revised DUAL CONTROL shift/brake levers with raised and rounded brake grips
The drive can be adjusted to the rider’s preferences via the E-TUBE app
Among other things, the shift speed can be set, a fully or semi-synchronous shift mode can be selected and the programme buttons on the shift lever can be assigned certain functions
Product features
Use: Road
Group: Dura Ace Di2 R9250
Model: ST-R9250 Set
Type: Dual-Control (STI)
Handlebar mounting: left / right
Gear front: 2-speed
Gear rear: 12-speed
Optical gear display: No
Lever reach adjust: Yes
Handlebar diameter: 23.8mm/24.2mm
Brake-type: SLR-EV Rim Brake
Recommended brake: BR-R9200, BR-R9210
Compatible electric wire: EW-SD300
E-tube Project: Yes
E-tube port (pcs): each 2
E-tube connector (pcs): 0
Port for satellite shifter (pcs): each 1
Di2 Wireless-Chip: No
Material
Body: CFRP
Lever: Carbon, painted
Color
Series color
Scope of delivery
1 x Shimano Dura Ace Di2 ST-R9250 2×12-speed STI Dual Control Set for Rim Brakes (no box packaging)
Brake wires, brake cables, end caps and tool are not included!
Technologies
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.
SLR-EV
SLR-EV is brand new SLR with 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 new 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.
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