SRAM makes good.
The SRAM Guide line of brakes really are the next level, and the
Ultimate is SRAM’s latest top-of-the-line offering. The Ultimate pairs
carbon fiber levers and titanium hardware with its all-new S4 4-piston
Caliper. This combination means pro-level XC-race weight with motorcycle stopping power.
Whereas the more basic Guide R brake relies on the proven DirectLink
lever design, the RS, RSC, and Ultimate models step it up with SwingLink. SwingLink utilizes a specially shaped cam that not only requires less travel and force to produce proportional amounts of pressure, it minimizes the "deadspot" of lever travel. Paired with the new cup-seal timing port closure system, this means that you receive perfect modulation immediately. Once the lever is squeezed, a cup seal swiftly passes this area and closes the port, pressurizing the system and forcing the pads to the rotor. The Ultimate's contact point adjustment feature is found just behind the lever attachment to the master cylinder, making it quick and convenient to dial in the brake's feel.
The caliper paired with the Guide Ultimate is the powerful new 4-piston S4 model, and it comes with SRAM's steel-backed Trail pads for incredible stopping power. The forged aluminum construction means long-term durability and ease of pad removal via the top-loading design.
Another feature exclusive to the Guide Ultimate brake is SRAM’s Bleeding Edge technology, which makes your brake bleeds easier and more effective. In the past, SRAM’s brakes have been notoriously difficult to bleed properly. Bleeding Edge does away with these bleed woes with new bleed porting and a new fluid path that make it easier to push fluid through the caliper. The dedicated bleed adapter for the S4 caliper plugs into the bleed port and seals the system to minimize air contamination and fluid loss.
The SRAM Guide Ultimate Disc Brake comes as a Front/left or
Rear/right lever and caliper configuration, with the package-completing
Centerline Rotor sold separately. The lever assembly is also Matchmaker
X-compatible, meaning you're able to run your various controls off one
tidy lever clamp.
- 4-piston S4 caliper for powerful stopping with every squeeze
- SwingLink lever cam and cup-seal timing port for improved modulation
- Carbon lever blade and titanium lever hardware shaves weight
- Stainless steel heat sink reduces braking temperature
- Revised bleeding port for easier, more reliable bleeding
- Matchmaker X-compatible streamlines bar set-up