Recommended Additional Upgrades
Why Choose RCB RS1 Carbon 17mm?
The RCB RS1 Carbon 17mm is the high-tech, lightweight “specialist” version of the S1 series. While the standard S1 uses a forged alloy lever, the RS1 Carbon replaces it with a real carbon fiber lever, targeting riders who want the absolute lightest setup with a high-end racing aesthetic.
Here is the deep dive into the RS1 Carbon 17mm:
The Carbon Fiber Advantage
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Weight Reduction: The lever is made from high-strength carbon fiber, reducing rotating mass on your handlebars and providing a unique, textured “dry carbon” feel.
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Temperature Stability: Carbon fiber doesn’t get as freezing cold or burning hot as aluminum, making it more comfortable for bare-handed or glove-intensive riding.
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Visual Prestige: It is arguably the most visually striking master pump in the RCB catalog, signaling a “Racing Spec” build.
Why the 17mm Bore?
Because this is a 17mm pump, it moves a significant amount of fluid. This makes it the ideal partner for:
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Dual-Disc Systems: Perfect for mid-displacement bikes like the Yamaha R3, Ninja 400, or Royal Enfield Interceptor 650.
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Big Caliper Upgrades: If you have swapped your stock caliper for a large 4-piston unit (like the RCB R1 or Brembo 4P), the 17mm bore ensures the lever doesn’t feel “mushy” or bottom out.
Performance & Design Highlights
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Forged Body: Just like the S1 series, the RS1 body is forged, not cast. This prevents body flex under heavy braking, ensuring that 100% of your hand pressure is converted into stopping power.
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Radial Precision: The radial configuration offers a direct, linear relationship between lever pull and brake bite. This is crucial for trail braking and fine control during high-speed cornering.
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Reach Adjustment: Features a precision dial to adjust the lever distance, allowing you to customize the “cockpit” to your hand size.
The Verdict
The RS1 Carbon 17mm is the “Exotic” version of the S1. You are getting the same world-class radial internals, but with the added benefits and “cool factor” of carbon fiber components.
Pro-Tip: If you are running a standard single-piston or small 2-piston caliper, the 17mm bore might feel too “stiff.” For those setups, look for the 14mm RS1 Carbon version to maintain better modulation
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FAQs
Is this better than S1-FL?
Yes, RS1 Carbon is more premium with carbon fiber construction and higher performance focus.
Is 17mm suitable for my bike?
Only if you are using upgraded calipers or dual-disc setup.
Is this for daily use?
It can be used daily, but it is designed for performance and aggressive riding.
