Sitting with cool confidence and authority atop SRAM's Guide line, the Guide RSC (B1) Disc Brake represents the best of the Guide hydraulic disc family, offering Lever reach adjustment, SRAM's new SwingLink lever design, and Contact point adjustment capability — abbreviated to create to the RSC distinction.
The Guide RSC's SwingLink levers are one of the biggest features setting it apart from its more straightforward siblings. SRAM designed them to react faster and with less force than earlier brakes, reducing the size of the lever "deadspot" with a new cam design. You'll feel more in-control as you whip around a corner and squeeze the levers to stay in control over a burly rock garden, and as soon as you do engage the levers, an efficient cup-seal timing port closes the port to pressurize the system and force the pads to the rotor for perfect, immediate modulation. SRAM also made the contact point easy to access, just behind the lever attachment to the master cylinder, so you can dial in the right feel for the brakes without having to perform complex mechanics.
SRAM pairs the Guide RSC with its powerful 4-piston, dual 14- and 16mm diameter caliper, built with its Bleeding Edge technology to ensure fluid passes easily through it for a more efficient bleeding process. Once you're done, a specifically-adapted S4 bleed adapter sits in the bleed port and guards the system against air contamination and fluid loss. The caliper comes with SRAM's steel-backed organic pads, whose forged aluminum construction promises long-term durability, with easy pad removable via a top-loading design.
Please note that compatible Centerline rotors are sold separately, with the Guide RSC (B1) Disc Brake coming as a Front/left or Rear/right lever and caliper configuration. Additionally, the lever assembly is Matchmaker-compatible, which allows you to run your various controls cleanly from a single lever clamp.
- SRAM's top-end mountain bike hydraulic disc brake
- Adjustable lever reach and pad contact
- Improved modulation and quicker engagement
- Facilitates easy bleeding with less contamination