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  • SRAM - Guide RSC (B1) Disc Brake - Black Ano
  • SRAM - Guide RSC (B1) Disc Brake - Silver Ano
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  • SRAM - Guide RSC (B1) Disc Brake - Black Ano
  • SRAM - Guide RSC (B1) Disc Brake - Silver Ano

SRAM Guide RSC (B1) Disc Brake


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  • Select options
    • Black Ano, Front/Left
    • Black Ano, Rear/Right
    • Silver Ano, Front/Left
    • Silver Ano, Rear/Right

    6 Reviews


    Superior slowdown.

    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
    • Item #SRM00B2

    Tech Specs

    Lever Adjustability
    reach (tool-free)
    4-piston (dual diameter)
    Caliper Adjustability
    adjustable banjo, contact point
    Mount Type
    DOT 5.1
    not included
    Claimed Weight
    381 g
    Recommended Use
    mountain bike
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Stop on A Dime

    • Familiarity: I've put it through the wringer

    Increased stopping power and four pistons. You cant go wrong with these brakes. I ride a lot of steep loose downhills and these bad boys have more then enough braking power. They give me the extra confident I need to take the corners a little faster.

    Feel free to contact me with any questions.

    Patrick Law- Expert Gearhead

    Great brakes, awesome modulation

    • Familiarity: I've put it through the wringer

    Over my last few bikes, I have gone back and forth between these and Shimano XT.
    The Guides have amazing modulation and all of the adjustments actually do something. I absolutely love the feel of them.
    But they do not have quite as much power as the XT's. So it is a bit of a toss-up.
    Going forward, I'd probably just match the brakes to the rest of the build, as they are both amazing brakes

    Put these on your bike!

    • Familiarity: I've put it through the wringer

    I'm in the process of building up my third bike with SRAM Guides. They provide exceptional stopping power with great lever feel. As Luke mentioned in his review, the B1 update is a solid improvement on an already great brake design. They're incredibly reliable, and bleeding them is pretty straightforward. I'm also a big fan of the reach / contact adjustment which allows me to set them up exactly how I want them.

    Great Brakes

    • Familiarity: I've put it through the wringer

    I love these brakes. I have them on all 3 of my mountain bikes and love the way the feel. These are not you Elixirs. They have a lot of stopping power when bombing down descents with a great feel. They are very reliable and durable. I use the Guides even on my cross country bikes, because I like the extra stopping power the the 4 piston calipers.

    My favorite brakes by far

    • Familiarity: I've put it through the wringer

    I was a die hard Shimano fan for a while, but always found their initial brake bite a bit jarring and sudden, which prevented feathering of the brakes coming into corners or through techy sections. Then these came out, they have way more modulation while keeping the same amount of power you get from Shimano. The update of the B1 version adds the same caliper that the guide ultimates have, which gives a lower friction piston seal and increased air flow around the pads which reduces heat. I definitely would recommend these brakes on any bike, they are a worthy upgrade.

    brakes? meh.

    • Familiarity: I've put it through the wringer

    I personally dont use them often. But when I do its becasue I have too. 4 pistons really come in handy when you are barreling down the trail and didnt see that hairpin turn at the bottom. Rarely do I wish I had more braking power. these brakes are great bang for the buck.