RCB E2 SERIES BRAKING SYSTEM
RCB S1 SERIES BRAKING SYSTEM
Recommended Additional Upgrades
01
S1 FL 30th Anniversary Special Edition
Get the Combo set for the ultimate brake system upgrade.
The RCB Clutch Cover for the Yamaha R15 V3/V4/M, MT-15, XSR 155, WR155R is one of the most iconic aesthetic and functional upgrades you can install. Often referred to as a “Clear Clutch Cover,” this component replaces the solid aluminum factory casing with a high-durability unit featuring a transparent window.
This allows you to see the internal clutch pressure plate and springs spinning in real-time, especially when paired with a colored UMA Racing Clutch Spring or the R15 V3/V4 Assist & Slipper Clutch mechanism.
Key Features
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High-Strength Polycarbonate Window: The “clear” part of the cover is made from a heat-resistant, impact-resistant polycarbonate. It is designed to withstand the high oil temperatures and internal pressures of a high-performance engine without clouding or cracking.
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CNC Machined Aluminum Frame: The outer housing is crafted from premium-grade aluminum, offering better heat dissipation than the stock cast cover.
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Improved Oil Circulation: The internal geometry is designed to ensure that engine oil continues to lubricate the clutch plates effectively while providing a “showcase” view of the mechanical action.
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Weather-Sealed Integrity: Features high-quality gaskets and O-rings to ensure that, despite the multi-piece construction, there are zero oil leaks, maintaining factory-level reliability.
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Premium Aesthetics: Available in various anodized finishes (typically Black, Silver, or Gold) to match your bike’s color scheme.
Technical Specifications
| Feature | RCB Clutch Cover Details |
| Compatibility | R15 V3/V4/M, MT-15, XSR 155, WR155R |
| Material | T6 Aluminum Alloy + Polycarbonate |
| Window Type | Clear / Transparent (Heat Resistant) |
| Installation | Direct Replacement (Bolts into OEM position) |
| Visual Effect | Visible Rotating Clutch Assembly |
Why Install the RCB Clutch Cover?
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The “Racing” Look: It gives your small-displacement sportbike the “dry clutch” aesthetic found on high-end Ducati superbikes.
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Mechanical Monitoring: It allows you to visually inspect the condition of your oil and the movement of the clutch pressure plate without removing any parts.
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Customization Synergy: This cover is best paired with the UMA Racing Clutch Plate Set and Performance Springs. Seeing those high-performance parts in motion adds a level of mechanical “soul” to the bike.
Installation Guidelines
When installing the RCB Clutch Cover, you will need to drain your engine oil first. It is the perfect time to perform a full oil change and replace the clutch cover gasket. To keep the window crystal clear, always use high-quality fully synthetic oil and change it at regular intervals to prevent “sludge” from coating the inside of the polycarbonate.
