RCB E2 SERIES BRAKING SYSTEM
RCB S1 SERIES BRAKING SYSTEM
RCB E4 Plus 15mm Master Brake Pump & Clutch Combo Set pairs the high-power RCB E4 Plus 15mm Master Brake Pump with the matching RCB Universal Cable Clutch Perch (E2/E3/E4 Edition).
Engineered for riders seeking track-level feedback, visual symmetry, and superior mechanical leverage, this plug-and-play combo eliminates mismatched levers while instantly sharpening your braking response and clutch engagement.
1. RCB E4 Plus 15mm Master Brake Pump (With External Reservoir)
The E4 Plus axial master cylinder delivers massive hydraulic leverage, making it the perfect upgrade for stock calipers or performance multi-piston aftermarket setups (2-pot to 4-pot).
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15mm Internal Bore: Displaces a larger volume of brake fluid with less physical hand effort, eliminating “spongy” lever travel and producing a firm, highly communicative stopping bite.
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Adjustable Lever Reach: Features an integrated dial adjuster to customize the distance between the lever and the handlebar grip, accommodating all hand sizes and glove thicknesses.
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Independent Smoke/Transparent Reservoir: Includes an external, vibration-dampened transparent fluid tank, allowing for quick, effortless fluid level and condition monitoring.
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Signature Styling: Accented with the distinct diamond-cut RCB logo directly on the solid-cast lever blade.
2. RCB Universal Cable Clutch Perch (E2 / E3 / E4 Match Edition)
Say goodbye to asymmetrical handlebar styling. This premium cable clutch assembly is specifically shaped, colored, and contoured to sit opposite the E4 Plus brake pump for a clean, factory-team aesthetic.
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Universal Cable Fitment: Designed to match a vast selection of cable-actuated clutch motorcycles (underbones, naked streetfighters, and sportbikes).
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Smooth Lever Pivot: Features precision pivot tolerances to eliminate vertical lever wobble, offering an incredibly smooth and linear clutch pull that reduces hand fatigue in heavy stop-and-go city traffic.
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Quick Cable Adjuster: Equipped with a large, glove-friendly knurled cable tension wheel for lightning-fast, on-the-fly clutch play adjustments.
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Premium Matte Black Armor: Finished in a matching deep black anodized/powder coat to withstand sweat, road grit, and weathering.
Combo Set Specifications
| Component | Feature / Specification |
| Brake Pump Piston Size | 15 mm Bore (Axial Setup) |
| Clutch Type Compatibility | Mechanical Cable Actuated |
| Handlebar Fitment | Universal 22mm (7/8″) Bars |
| Material Base | High-Strength Cast Aluminum Alloy |
| Finish / Color | Anodized Semi-Matte Black |
| Reservoir Included | Yes, Smoke/Transparent Tank + Bracket & Hose |
| Integrated Mirror Mounts | Standard M10 Mirror Boss Threads |
Combo Set Benefits
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Flawless Visual Symmetry: Installing an aftermarket master cylinder with a stock clutch lever ruins your cockpit’s symmetry. This set guarantees identical lever shapes, finishes, and ergonomic geometry on both sides of your handlebars.
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Perfect Ergonomic Consistency: Both levers feature matching blade arcs and finger-contact profiles, giving your hands an identical, familiar feel whether you are downshifting or squeezing the front brake.
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Value Packaging: Purchasing the E4 Plus Brake Pump and the E-Series Clutch Perch together in this bundle saves you money compared to ordering them individually.
Installation Guidelines
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Flush and Fill (Brake Side): The 15mm E4 Plus pump requires a complete hydraulic system bleed upon installation. Always use a freshly unsealed bottle of high-performance DOT 4 brake fluid.
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Lubricate the Clutch Cable: Take this opportunity to clean and apply a dedicated cable lubricant down your clutch cable sleeve before locking it into the new RCB perch for an ultra-slick, feather-light lever pull.
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Torque Safely: Mount both perches to your 22mm handlebars using a torque wrench (typically 8 to 10 Nm). Do not over-tighten, as the clamp is designed to rotate slightly under a heavy crash impact rather than snapping off.
