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The 105 shift/brake lever ST-5700 and ST-5703 by Shimano - total integration
The Shimano 105 ST-5700 or ST-5703 shift/brake lever is a dual control lever with Shimano Total Integration technology, i.e. it combines braking and shifting functions. Three versions can be distinguished: ST-5700-L for controlling the front derailleur with 2 chainrings (left mounting), ST-5703-L for controlling the front derailleur with 3 chainrings (left mounting) and ST-5700-R for shifting the rear derailleur with 10-speed cassettes (right mounting). The joint of the brake lever has been repositioned so that it is easier to operate from above. The reach, which can be adjusted via spacers, also contributes to ergonomics and riding comfort. With the 105 STIs, braking performance will be better controlled in all situations, especially as Super SLR technology optimises response.
Series: 105 5700
Gearing: 2x, 3x, 10-speed
Shifting System: mechanical
Brake Type: mechanical
Brake Lever Material: aluminium
Lever Body Material: composite (GFRP)
Mount: clamp (closed)
Reach Adjust: spacers
Adjustment Options: reach adjust
- ergonomically shaped hood
- internal cable routing: easier steering, tidier handlebars
- ergonomic brake system for better access to the brake lever from above thanks to tighter joint
- better brake modulation for different riding positions
- spacer allows reduction of 5 mm or 10 mm reach to ensure maximum comfort depending on the size of the hand
- stainless steel shifter cable, SIL-TEC coated; OT-SP41 cable housing recommended
- clear coated (silver) or panted (black) main lever
STI Dual Control (DCL)
DCL stands for 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 Dura Ace, Ultegra and 105 Dual Control shift/brake levers have been optimised and feature, for example, a weight-reduced joint on the inside of the shift mechanism and integration of the cable for easier steering. The extremely compact and high-precision manufactured individual parts result in an unrivalled shifting speed.
New Super SLR
SLR stands for Shimano Linear Response. The New Super SLR design makes use of a friction-reducing mechanism in the caliper, lever and cable that improve response and modulation. Also for the lever, the Servo Wave mechanism is adopted to provide quick contact of shoe to rim and longer stroke from the initial braking effect for better control. SLR is the essential factor in the Shimano dual-pivot caliper that delivers more braking power than conventional side-pulls.
Shimano's ultra-low friction surface treatment Superior to simple coating, SIL-TEC is an advanced plating process that improves system performance through the use of imbedded fluorine particles. SIL-TEC products run smoother and wear longer in all conditions.
Manufacturer Part Number: I-ST5700LIL (black), I-ST5700LIS (silver)
- Manufacturer Part Numbers: I-ST5703LIL (black), I-ST5703LIS (silver)
Manufacturer Part Numbers: I-ST5700RIL (black), I-ST5700RIS (silver)
- 1 x Shimano 105 ST-5700 shift / brake lever or ST-5703
- 1 x Shimano shifter cable
- 1 x end cap
- 1 x reach adjuster