Shimano 105 ST-R7020 + BR-R7070 11S hydraulic control levers
The most important new feature of the new 105 is the introduction of disc brakes as a range mounting option. The new BR-R7070 flat-mount calipers are compatible with the Ice Technologies pads and the SM-RT70 rotors (including the new 140 mm size) to ensure greater cooling efficiency. Braking is handled by new ST-R7020 dual-control hydraulic levers with new ergonomic design.
Both the traditional control levers (ST-R7000) and the disc control levers (ST-R7020 / 25) have been redesigned to offer faster and smoother shift movements with a shorter shift stroke than the same 5800 series.
Lever features
- Great ergonomics cascaded from Ultegra.
- Greater reach adjust range.
- Redesigned internal shifting unit.
- Greater rider control in all conditions.
- Quick and intuitive rear shifting operation.
- Same light shifting operation as top tier systems.
- Shifter type: Dual Control Lever.
- Breaking fluid: mineral oil.
- Compatibility: 2x11 speed.
- Total weight: 1077 g (2 levers, 2 calipers, cables and housings with breaking fluid, mounting elements)
Caliper features
- Excellent heat dissipation.
- Convenient tool access.
- Simple wheel replacement.
- Easy and clean bleeding system.
- Greater rider control in all conditions.
- Simple set up and maintenance.
- Mounting type: flat-mount.
- Pistons number: 2.
- Recommended brake rotor: SM-RT70.
Technologies
DCL (Dual Control Lever)
It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from Shimano's MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration, and simply has to be experienced to be understood.
The 105 Dual Control Lever has an optimized structure with features that include the lighter weight pivot section in the near side of the shifting unit and the integral shifting cable for lighter steering. Its many component parts are made so compact and precise to achieve unprecedented high-speed performance.
Ice Technologies
The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride for instance, has a negative impact on the braking performance. Shimano has adopted Ice Technologies disc brake rotor and Ice Technologies pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminium and stainless steel, provides better radiation performance achieving from 400˚C to 300˚C surface temperature. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.
One Way Bleeding
“One Way Bleeding” was developed for quick and easy prevention of air in Shimano's hydraulic system. They've 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.
Lever configuration
- Right Lever: Rear brake (hose length: 1710 mm).
- Left lever: Front brake (hose length: 1010 mm).
Kit includes mechanic control levers, brake calipers with hoses, pads, hydraulic connectors and mineral oil.
Rotors not included.
Find out more on the packaging of this item.