In the new R785 series Di2/hydraulic disc brake system, Shimano Di2 electronic shifting delivers the fastest, most precise shifting possible that is highly customizable. Innovative ICE Technologies hydraulic disc brake heat management systems integrate aluminum materials in disc brake rotors and disc brake pads to radiate out heat by up to 200 degrees to ensure consistent, dependable braking performance regardless of conditions. For road use, braking power is consistent no matter the conditions or the descent. For cyclocross, racers can brake later in the corners, with more power and better modulation in all conditions.
R785 dual control lever:
Shimano Di2 Precision / Clean, Ergonomic Design The new Di2-enabled ST-R785 offers unmatched shifting options, customization and personalization to meet the various needs of road and cyclocross riders. When paired with new E-Tube enabled Ultegra 6870 Di2 or Dura-Ace 9070 Di2 drivetrains, various Shimano remote and accessory shifters and electronic components, riders have access to a fully customizable and programmable shifting system - including multi-shift speed and shift count – in addition to being upgradeable for new firmware updates over time.
Di2 electronic shifting internals, the svelte form factor of the ST-R785 hydraulic/shift lever is highly ergonomic to accommodate a variety of hand sizes, yet more comfortable, with its compact aesthetics resembling a typical Shimano Di2 road shift/brake lever.
The brake lever delivers more stopping power with less effort, especially from the hood position, and includes reach and free stroke adjustments in addition to a pad clearance auto adjustment at the caliper.
ICE Technologies Braking System Advantages Shimano ICE Technologies hydraulic disc brake systems include new advancements for 2014 that will give riders confident braking on long road descents in all weather conditions.
The new BR-R785 hydraulic disc brake caliper features a two-piston design with mountain bike stopping power that is tuned for road use. Heat reduction in the caliper is further enhanced with ICE Technologies finned disc brake pads that reduce heat by 50 degrees.
New SM-RT99 Center-Lock finned disc brake rotors further reduce heat in the braking system by 150 degrees compared to steel disc rotors creating a system advantage with the BR-R785 ICE Technologies enabled disc brake caliper.
The new SM-RT99 disc rotors are available in 140mm and 160mm sizes, allowing road riders to custom tune the braking performance according to ride conditions, terrain, and rider size.
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