Carbon and titanium paired with excellent braking performance
With the G2 Ultimate, SRAM has spared nothing! Its developers used the finest materials, titanium and carbon, to create their lightest four-piston brake of all time. Braking force, controllability and lever ergonomics set a new standard here. The individual setting is quick and intuitive. And as for the performance - well, our test drivers called them the "mini code" for a reason.
Technologies used
In this chapter we explain the technologies that the manufacturer uses for this product.
Bleeding Edge ™
With this new brake fluid circuit, the ventilation opening has been moved to the underside of the brake calliper and all four piston bores can access it. During the bleeding process, the brake caliper is naturally filled with liquid, which enables easier and more even bleeding.
Timing port closure
The synchronization port of a hydraulic brake is the connection between the reservoir and the master cylinder bore. When the lever is pulled, a cup seal passes this area and closes the opening, thereby pressurizing the system. SRAM's new TPC Plus system for closing the synchronization opening has tough seals and an ultra-soft cylinder bore surface for reliable and constant braking performance.
Power Reserve Geometry ™
Basically, a brake lever just amplifies the force generated by your hand (just like a nutcracker). Avid's Power Reserve Geometry ™ offers a way to combine great leverage with great comfort for your hands. This philosophy is fundamentally different from that of other brake manufacturers. With other brake levers, due to the location of the pivot point and the laws of physics, your fingers have a tendency to slide off the ends of the levers as you pull. Avid brakes are different. With SRAM's brake levers, the pivot point of the handle is closer to the handlebars - closer than any other brake on the market. The resulting lever movement does not go so much inwards and an arc is created that corresponds more closely to the natural movement of your fingers. In this way, more power is transferred to the brake. And the great thing is, every Avid lever has this feature.
Contact point adjustment
Some people like the immediate power transmission of a short lever path. Others, on the other hand, prefer the feeling of a longer lever path. With the pressure point setting, you can determine the position where your fingers should be when the brakes are applied. This allows you to quickly and easily adapt the feel of your brakes to your needs without having to move the brake pads. In addition, both brake levers can be adjusted so that they feel exactly the same.
S4 Light-Weight 4-Piston Caliber
The brand new brake caliper S4 has four machined and molybdenum-coated pistons made of aluminum for constant opening and easy set-up, thermal protection as well as a bleeding edge opening and adapter technology for easy ventilation.
SwingLink ™
When you pull on a new SRAM brake lever, you will immediately notice the difference. A shorter idle path. An optimized actuation of the brake pads. The new cam design means that a shorter lever path is required to push the brake pads in the direction of the brake disc. That's nice, but there's more to perfect braking than just strength. They need control. Many brake systems offer a shorter idle travel - but at the expense of modulation. SwingLink solves this problem with its special cam shape. When the brake pads touch the brake disc, the force is modulated, thus avoiding the “stuttering” braking feeling. This creates the perfect balance between power and precision.
Lever pivot bearings
Sealed precision bearings on the rotary handle ensure a clean, precise handle movement and enable easy operation with just one finger.